Solve the quadratic equation. 3x^215x+18=0 I know that the formula to quadratic equation is x=b+and(square root)b^24ac divided by 2a. I know that a=3, b=15 and c=18, then subsitute in and get two answers, my problem is that I keep getting
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algebra 2
a quadratic equation can be written in vertex form or in standard form. sometimes one form is more beneficial than the other. identify which form would be more helpful if you needed to do each task listed below and explain why. a. factor the equation. b.

algebra 2
A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task listed below and explain why a. factor the equation b.

Math
Lesson 8: Systems of Linear and Quadratic Equations Check my work 1. Solve the system of equations. y = 2x^2  3 y = 3x  1 a. no solution b. (1/2, 5), (2, 5/2) c. (1/2, 5/2), (2,5)*** d. (1/2, 5/2), (2, 5) 2.how many real number solutions does the

Algebra
1.Solve the system of equations. y = 2x^2  3 y = 3x  1 a. no solution b. (1/2, 5), (2, 5/2) c. (1/2, 5/2), (2,5) d. (1/2, 5/2), (2, 5) 2.how many real number solutions does the equation have 0 = 3x^2 + x  4 a. 0 b. 1 c. 2 d. 3 3. solve the equation

math
Heather is solving an equation by graphing the expressions on both sides. If her graph intersects at an infinite number of points, which statement could describe the equation Heather is attempting to solve? A. One side of the equation is a constant, and

Algebra2
A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task listed below and explain why. a factor the equation b

Algebra
Please Help! Given the following three points, find by hand the quadratic function they represent. (−1,−8), (0,−1),(1,2) A. f(x)=−3x2+4x−1 B. f(x)=−2x2+5x−1 C. f(x)=−3x2+10x−1 D. f(x)=−5x2+8x−1 Determine if the following set of

Algebra
What method(s) would you choose to solve the equation? Explain your reasoning. 4x^248=0 a. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. Selected:b. Square roots; there is no xterm. c. Factoring; the

algebra
Solve the equation using the zeroproduct property. 9n(5n5) a. 1/9, 1 b. 0,1***** c. 1/9,1 d. 0,1 Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^26=x a. x=2,3 b. x=2,3 ***** c. x=2,3 d. x=2,3 How

algerba
What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = −2x2 − 3x + 8, and what does it mean about the number of real solutions the equation has? What are the solutions to the quadratic equation 4(x + 2)2 = 36 Mischa wrote the

Algebra
Use the quadratic formula to solve the equation. Give exact answers: 2x^2 1 = 6x. The choices are: a) 3 + square root(7)/2, 3  square root(7)/2 b) 3 + square root(11)/2, 3  square root(11)/2 c) 3 + square root(7)/2, 3  square root(7)/2 d) 3 + square

Algebra
I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

algebra
Solve this quadratic equation using the quadratic formula. x^2 + 8x  5 = 0

math help plsss plsss
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2

Algebra II
1)What method(s) would you choose to solve the equation: x2 + 2x  6 = 0 A. Square roots; there is no xterm. B. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. C. Factoring; the equation is easily factored.

algebra
Solve the quadratic equation: 2x(squared)+6x+12=0 I know you have to find two numbers that =24 (2 times 12) and have a sum of 6. But I can't think of any! Can someone please help? Use the quadratic. And this problem has no real answers, they are imaginary.

Algebra
Quadratic Formula Using +/ for plus or minus Using \/ radical sign *****************_________ Formula: b +/ \/b^24ac ********____________________ *****************2a Equation: x^2  25 = 0 Books says answer is 5 and 5. I can get the 5. I do not get

math help
write the quadratic equation whose roots are 4 and 5 and whose leading coefficient is 5 use the letter x to represent the variable. use the quadratic formula to solve for x 4x^29x+3=0

Algebra
Explain how to solve a quadratic equation using the quadratic formula.

AlgebraB2
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = 0.04x+ 8.3x + 4.3, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of

algebra II
How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your

math algebra
Part 1: Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring and why? 1. −b 2. b2 − 4ac 3. 2a Part 2: Create your own quadratic equation. Using complete sentences, and your answer from part 1,

math
solve the equation x^35x^24x+20=0 I need a hint on how to solve this Look for the first root by graphical means or trialanderror. Note that when x=2, x^35x^24x+20 = 820 8 +20 = 0. Therefore 2 is one root and x2 is a factor. Next, divide x2 into

Math
The surface area of a soft drink with cylindrical shape is given by a formula SA=2×pi×r(r+h), where r cm is radius of can and h cm is the height. The height of a can of wood finish is 5 cm and its surface area is 250cm^2 Substitute values into formula to

Algebra
Solve the quadratic equation. 3x^215x+18=0 I know that the formula to quadratic equation is x=b+and(square root)b^24ac divided by 2a. I know that a=3, b=15 and c=18, then subsitute in and get two answers, my problem is that I keep getting an answer

Math
Use the quadratic formula to solve each of the following quadratic equations... 1. 2x^25x=3 2. 3x^22x+1=0 Rearrange the equation in quadratic formula form. 2x^2 5x 3 = 0 Then use the formula. Tell me what you don't understand about it if you don't know

Algebra
I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

math help how do i do this
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2

algebra 1
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 +

math
use the quadratic formula to solve this equation. 4x^28x+3=5 use the formula x=b + or  the sqrt of b^24ac/2a yes, the 2a divides into all. Memorize it.

Algebra
Solve the quadratic equation by the square root property (2x  1)2 = 25

math
Solve the quadratic equation. 3x^2  15x + 18 = 0

Algebra
Solve the equation. Use factoring or the quadratic formula, whichever is appropriate. Try factoring first. If you have any difficulty factoring, then go right to the quadratic formula. (Enter your answers as a commaseparated list.) (x+2)^2 + (x7)(x2)=16

polynomials
i also have theses to solve Factor the polynomial x2 + 5x + 6 completely Solve the given equation by using the quadratic formula. x2 – 7x – 4 = 0 What value is under the square root (or radical) in your answer? (Note: You are asked to identify only the

Algebra
1. Parent Quadratic Equation 2. Coordinate of the vertex 3. quadratic formula A. b/2a B. y = 2x C.b^2  4ac D. y = a(x  h)^2 + k E. x = b +/ (square root of) b^2 4ac/2a I think the answers are: 1. B 2. C 3. E Are these correct? Thanks!

Algebra2
Find the polynomials roots to each of the following problems: #1) x^2+3x+1 #2) x^2+4x+3=0 #3) 2x^2+4x5 #3 is not an equation. Dod you omit "= 0" at the end? #2 can be factored into (x+1)(x+3) = 0, so the roots are x=1 and 3. #1 Use the quadratic

math,algebra
can someone help me out factor out this 0=16t^2122t+180 i have so far this but the last one i am not sure 8(2t^214t + ?) you need to use the quadratic formula: b(+or)[sqrt(b^24ac)/2a] so you are saying that i don't have to factor it out any further i

Pre Algebra
Please help me with some problems. Thank you! Solve the equation by square root property. 3. 2x^2 = 26 I don't understand how to solve this problem. Solve the equation using the quadratic formula. 7. 7x^2=8x 2 This is what I got x= 8 or+ square root

math
15t^2+7t=2 The quadratic formula tells you that the solutions are: t = [b +/sqrt (b^2  4ac]/ (2a) In this case, a = 15, b = 7 and c = 2 solve the equation for t. What values for t will you get when you substitute the values you listed for a, b, and c

algebra
Solve the quadratic equation 2x to the 2nd power 3x2=0using the quadratic formula. Read the information in the assignment list to learn more about how to type math symbols in MS Word, such as the square root.

college math
I'm hoping I did thesse right. Solve each quadratic equation. (I don't know how to do symbols on here so i'll write it out in word form) The equation is: x squared + 3x+4=0 I said its not possible because i got x=3 + or  the square root of 7/2 and you

algebra
0. Tell your classmates about your pet to set up the scenario for fencing a rectangle in your yard. 1. You MUST start by choosing an amount of area that you want to fence in for your pet and this MUST be stated first. What amount of area are you enclosing

QUADRATIC EQUATION
r^2+8r=48 First bring the 48 to the other side of the equation r^2+8r48=0 Now you can use the quadratic formula. x=b+sqrt(b^2(4ac)) ¯¯¯¯¯¯¯2a¯¯¯¯¯¯¯¯¯ So... a=1 b=8 c=48 Now just plug the numbers into the quadratic equation and get

algebra
1)Solve by factoring:5x^2=419x answer=4,1/5 2)Which quadratic equation has roots 7 and 2/3? answer=A A.2x^211x21=0 B.3x^219x14=0 C.3x^2+23x+14=0 D.2x^2+11x21=0 3)To solve 4x^228x+49=25 by using the square root property,you would first rewrite the

algebra II
I'm quite clueless as to how to solve this. I know the quadratic equation but am not sure how to get this equation into the format to plug in to the quadratic... Solve the quadratic equation using the formula [1/(1+x)][1/(3x)]=(6/35) Show your work

math
(4y^2)/(y2) = y/2 (4y^2)/(y2) = y/2 4  y^2 = (y*(y2))/2 4  y^2 = (y^22y)/2 8  2y^2 = y^2  2y 3y^2  2y  8 = 0 (keep the above equation in mind) quadratic formula: (b +/ sqrt(b^2  4ac))/2a now solve by plugging in the appropriate numbers and

Algebra
For what value(s) of b will x^2 + bx + 3 have exactly one root? I'm rather new at this but wouldn't b=2*sqrt(3) give (x+sqrt3)2 as factors and that would give one root? Check my thinking. for a quadratic equation to have exactly one root, the discriminat

MATH
Hi, I'm trying to understand what a quadratic equation is. I understand that in a quadratic equation you have to have a variable in the second power. Why, then, aren't y = x^2 + 2x^3 and Y = 2x^2 + 3 times the square root of x quadratic equations? They

Algebra I
What is the quadratic equation? In the standard form of the quadratic, ax2 + b x + c=0 a, b and c are constants. Then x is equal to (b + sqrt (b2 4ac) )/2a huh?? You asked what the quadratic equation was, I gave it to you. You need to read your text on

math
(4.35E2  x)(7.56E2 x ) ============================ (0.324 + 2x)2 Rearrange to get an expression of the form ax2 + bx + c = 0 and use the quadratic formula (solve for x. This gives: x = 1.05E2, 0.143 basically i understand they use the quadratic

math
is these answers correct? solve the equation: 2x^2 +8x  17=(x +2)^2= x=7,3 solve (v5)^263=0, where v is a real number, simplify answer as much as possible. v=3 square root 7+5,3 square root7+5 v``12.93725, 2.937254 use the quadratic formula to solve

Math
Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one

Math
Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one

precal
when i do the quadratic equation i get 17 plus or minus the square root of 193 all over 2. where do i get the two "cos 3x" roots?? solve the equation to the nearest tenth, where 0 degrees < or equal to x which is < 360 degrees. 8cos^2 3x17cos3x+3=0 this

Math ,help
how can i simplify this more its for the following problem: Problem #22 solve by using the quadratic formual. 5x^24x+1=0 this is where i am but i do not know how to go further. x = (4 (+/) sqrt (4))/(10) Problem #23 Solve by completing the square.

math,help,algebra I
I need help can someone help me get unstuck and let me know if i am correct.thank you. solve by completing the square. 4x^2+2x3=0 this is what i am doing: i used the quadratic equation. so where i am is in this step: x = (2 (+) sqrt (44))/(8) from this

Algebra
1)Solve by factoring:5x^2=419x answer=4,1/5 2)Which quadratic equation has roots 7 and 2/3? answer=A A.2x^211x21=0 B.3x^219x14=0 C.3x^2+23x+14=0 D.2x^2+11x21=0 3)To solve 4x^228x+49=25 by using the square root property,you would first rewrite the

algebra
Can someone please help me with this one? Solve (5x+4)^1/23x=0 Just so you know, it is to the 1/2 power. Add 3x to both sides of the equation, then square both sides. That should enable you to gather terms and factor. Yeah, that's the part I understood.

math
My problem I have involves a method that requires using the quadratic equations that comes from India. Here the problem that I have to solve : x to the second power plus 12x minus 64 equals 0 I need someone to walk me through each step to arrived to the

physics repost
I am still trying to solve for H in this equation but I am still lost MgH = (1/2)*k*(H210)^2 + Mg*2 I was told to expand the square on the right, gather terms, put it in the standard quadratic form, and use the quadratic formula, but I don't know how.

physics repost
I am still trying to solve for H in this equation but I am still lost MgH = (1/2)*k*(H210)^2 + Mg*2 I was told to expand the square on the right, gather terms, put it in the standard quadratic form, and use the quadratic formula, but I don't know how.

maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2  6x  40 = 0 (ii) 3x^2 + 20x  7 = 0 (b) For each question in part (a), check your solutions by substituting them back into the equation. 3.

maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2  6x  40 = 0 (ii) 3x^2 + 20x  7 = 0 (b) For each question in part (a), check your solutions by substituting them back into the equation. 3.

maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2  6x  40 = 0 (ii) 3x^2 + 20x  7 = 0 (b) For each question in part (a), check your solutions by substituting them back into the equation. 3.

Algebra
Which is the easiest way to figure a quadratic equation; graphing, quadratic formula, completing a square and factoring?

math
how would you solve for y in this problem: x=(y^2+3y)^(1/3) would it equal: y= x^3/y  3 ? and what about this problem: x= 1/[(y^2+3y5)^3] would it equal: y = y/x + 5/y  3? I would appreciate your help very much! Your equation is correct but it does not

Algebra
I really need help on some sample work. Just need to check my answers: 1. Describe how the graph of y=x^2+1 differs from y=x^2. Then find the axis of symmetry and the vertex 2. Graph the quadratic equation y=x^2+x2. Identify the axis of symmetry and the

Algebra
I really need help on some sample work. Just need to check my answers: 1. Describe how the graph of y=x^2+1 differs from y=x^2. Then find the axis of symmetry and the vertex 2. Graph the quadratic equation y=x^2+x2. Identify the axis of symmetry and the

Algebra 1
Solve the quadratic equation by completing the square. 4x2 + 2x  7 = 0 A) x = 1 ± square root of 29/4 B) x = −1 ± square root of 29/4 C) x = −1 ± square root of 29/8 D) x = −1 ± square root of 29/16 Please help me!

PRE  CALCULUS
Solve the quadratic equation by the square root property. (2x + 5)2 = 49 A. {6, 1} B. {0, 1} C. {27, 27} D. {1, 6} d?

Math
solve the quadratic equation using the square root property. (2x+5)^2=12

algebra
which quadratic formula would be used to solve the following quadratic equation? 4x^2  5x = 2 can you show me the correct answer and how do it please

Math Help
Consider the quadratic equation (a) Solve the equation using the quadratic formula, expressing your answer in terms of k. (b) What condition on k will assure that the equation has exactly one solution? (c) What condition on k will assure that there are two

Algebra 1
How do I solve this quadratic equation using the quadratic formula "8a(squared)a+2=0"

Algebra
I have some problems that I am having trouble with and I have some that need checking please. Thanks! Solve the equation. 4. (x+7/4)=2(x1/6) Find all the value(s) of x that make thedenominator(s) zero. Then solve the equation. 6. (x8/2x) +5= (x+6/x)

Algebra 1
Which method is the best method for solving the equation 8x^2123x+3=0 square roots factoring graphing quadratic formula my answer is quadratic formula

math
I'm completely lost withhow u solve this quadratic equation using the square root method 6x^2=1

Math
Solve the quadratic equation using the quadratic formula, x^23x+2=0.

Algebra
When you're breaking down the square root in the quadratic formula into several parts say it was the originally the square root of 80 so you break it down to square root of 4 and square root of 20would the results be added or multiplyed? Because I know

maths
Quadratic equation Solve= square root(1y) + square root(12+y) 5 =0

Algebra
Find two consecutive positive integers such that the sum of the square is 85..(show your work) If X is the first integer, then X+1 is the next; therefore, the sum of those squares will be 85. X^2 + (X+1)^2 = 85 Solve for X, then add 1 to it for the second

Math
x^3 + 1.85x^2  x +0.15 = 0 how can you solve for x? An exact solution or a numerical solution? Exact solutions can be obtained as follows: x^3  1.85x^2 + x  0.15 = 0 First get rid of the quadratic term by substituting: x = (y + 1.85/3) You then obtain

Math
Solve the equation by factoring, by finding square roots, or by using the quadratic formula. 3(x+4)^2= 27

math
Still looking at how to solve these... Both are cubic polynomials? 43x^3 + 13x^2 + 18x  456 = 0 DO I divide first by x1? 2x(3x+2)^2=312 Honestly: I would graph the equations and find the roots first. I don't see them off hand. graph y=43x^3 + 13x^2 + 18x

Algebra
69: 16x^2+8x3. I inserted this into the quadratic formula and got 8+/ the square root of (8^24(16)(3)/(2 times 16). This reduced to 8+/ the square root of (64+120)/32, which further reduced to 8+/the square root of 184/32. I reduced the top part

math
how would you solve for y in this problem: x=(y^2+3y)^(1/3) I got: y= x^3/y  3 ? and for this problem: x= 1/[(y^2+3y5)^3] I got: y = y/x + 5/y  3? However, I do not know how to solve for y explicitly. I don't think quadratic formula would work in these

Math
4. Solve the equation using all three methods below. Factoring, completing the square, quadratic formula. x^2 + 3x  4 = 0 and 4x^2 = 9 it seems like x^2 + 3x  4 = 0 equals x = 1, 4 from all three methods but Im not sure 4x^2 = 9 equals x = 3/2, (3/2)

algebra
1.)correct 2.)wrong> the first term is wrong 4(3a^2)^2 = 36a^4 3.) not sure on this one 4.) wrong>  square root of six is not a solution Hope this Helps! 1)find p(3)if p(x)=4x^35x^2+7x10 =184 2)If r(x)=4x^23x+7,find r(3a^2) =12a^49a^2+7

advanced math
Hi, I am trying to solve graphing quadratic equations. One of the problems is written as x^2= 2x1. So if I wanted to put this equation in the proper quadratic equation form, would it be 2x1x^2, or x^2+2x1? I'm really not sure.

Algebra
How do you solve an equation with a fraction like x^(2/3) +13=17. I don't think the quadratic formula would work for this method, and neither would completing the square. What should I do?

algebra II
How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your

Algebra
I have to solve equations using the quadratic formula and I know how to do some of it. I have it down to this 4+/ 2 square root of 10 all over 6. How do I simplify that?

8th Grade Algebra
You know how to solve quadratic equations using algebra, graphs and the quadratic formula. Sometimes one method of solving is more convenient than another method. Describe how you would solve each equation. Give reasons for you answers. A) 16x^2 = 1600 B)

Math
This is the same equation as before just with different numbers. y=yo + (vo sin Q) t  1/2gt^2 This time the numbers are: 0 = 1.005 + (3.021 sin 30)t  1/2(9.8)t^2 4.9t^2  1.5105  1.005 = 0 This is the part where I am stuck. Did I do this correctly? sin

Math(Please answer)
This is the same equation as before just with different numbers. y=yo + (vo sin Q) t  1/2gt^2 This time the numbers are: 0 = 1.005 + (3.021 sin 30)t  1/2(9.8)t^2 4.9t^2  1.5105  1.005 = 0 This is the part where I am stuck. Did I do this correctly? sin

math
Solve the equation using the quadratic formula (if necessary, round your result to three significant digits and decide which number is smaller or larger x value). 2x^2 + x − 7 = 0 I used the quadratic formula and I got 2.13 as a smaller xvalue and 1.6

Algebra II
I am expected to use the quadratic equation for the following: x2 + 3x – 4 = (x + 4)(x – 1) = 0. Once this is plugged into the value of x (the long equation, which I am unable to copy from the internet, but it goes 3 plus or minus the square root

mathcalculus
solve equation x^22x6 using quadratic formula. i not get how to do this and it says quadratic formula.

Algebra
Solve 2+ the square root of 4x=x what is your question? ok lets start by arranging everything so its easier to solve.. u want to put the square root(4x)on one side of the equation and the 2 on the other side... square root(4x) = x  2; now..to get rid

Maths
solve the following quadratic equation using the factorization method x^22x15=0 (b) construct quadratic equation whose roots are given as 1/2 and 3/2?