# math(factoring by completing)

137,157 results

3. Solve for x in 8x^2 + 2x - 4 = 0 I have tried factoring, taking out a GCF then factoring, completing the square, and got a bunch of wrong answers. I thought we were supposed to complete the square, so maybe I'm just doing that wrong. I'm not looking for the answer to the ...

### math(factoring by completing)

hi. - I am not sure how to do this.- You have to factor completley. 5y^8-125

I am trying to define the different appraoches to solving quadratic equations. My book says using quadratic formula, completing the sqaure and factoring. I thought completing the square would be by facotring? How are these two different?

### Math

Solve the equation by factoring, by finding square roots, or by completing the square. 4(x+8)^2=144 I'm not sure if I'm suppose to divide or multiply the 4 to both sides..

### Math

Hi everyone. Would someone be able to help me with this problems? I know it's a lot, if you only want to help with one or two, that is fine!! 9. Could you show how to use factoring and the zero-proudct property to find the zeros of each quadratic function? f(x)=x^2-9x 11. Same...

### Math-Factoring

Hey I need help factoring 5x^4-180x^2. I'm used to factoring with three numbers, and not two. How would you do just two like this? Thanks

### Math College Algebra

For the solution of finding zeros flr -6x^2-13x+5 When i use factoring and completing the squares the zeros are 1/3 and -5/2 However when i used the quadratic formula it gave me -13+ - sqrt of 17/ 12 Why is that. Is it still tge same How

### Algebra

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

### math 117

Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Explain why.

### Algebra Question

Quadratic equations can be solved by graphing, using the quadrat completing the square, and factoring. What are the pros and cons these methods? When might each method be most appropriate?

### Math just explain

Why do I get different answer when I use the quadratic equation? In finding the zeros of a function. I used factoring and completing the squares and it gave me the same answer.. How am I going to defend that my answer using quadatic formula is also right ?

### algebra

Quadratic equations can be solved by graphing,using the quadratic formula, completing the square, and factoring. What are the pros and cons of the methods. when would each be appropriate?

### MATH I just need explanation very easy ( for you)

Why do I get different answer when I use the quadratic equation? In finding the zeros of a function. I used factoring and completing the squares and it gave me the same answer.. How am I going to defend that my answer using quadatic formula is also right ?

### Factoring

x2(squared)-4x+4 I would factor this into (X - 2)(X - 2) If you don't know the rules for factoring, post, and we can show you how to do it. I don't know the factoring rules. My algebra teacher couldn't teach.

### GR.10 MATH.

i want to noe what is the DIFERENCE between partial and complete factoring. an e.g of a partial factoring problem is y=2x^2+8x+5 an e.g of complete factoring is y=x^2+3x-10

### Math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...

### math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...

### Math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...

### ALGEBRA

Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer?

### ALGEBRA--MAT 117

Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Why?

### 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 comma-separated list.) (x+2)^2 + (x-7)(x-2)=16

### Math: Factoring

I'm having a hard time factoring polynomials, especially 3rd degree. -x^3+2x^2+4x-8 -x^3-5x^2+20x+12 I don't know how to begin. I thought long division, but what would I divide by?

### factoring

I cannot figure these out.Can someone Factor completely: 3x2 - x - 4 I suppose this is actually 3x^2 -x-4 If so: (3x-4)(x+1) Now I'd like you to look at the following website: http://tutorial.math.lamar.edu/AllBrowsers/1314/Factoring.asp

### Mat/117 DQ2

Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? Please provide examples. When might each method be most appropriate? Which method do you prefer? Explain why.

### Algebra

Which of the following statements is true? A. Any quadratic equation can be solved by completing the square. B. Completing the square always gives two distinct solutions. C. You can’t complete the square if there is no constant in the equation. D. You can only use completing...

### math?? factoring

100N/m d^2 - 57.3d= 0 sigh...I can't figure out how to find d know it's factoring but as to actual number to factor out...not so sure. Thanks

### math

I don't understand factoring. One of my homework questions asks for that. The question is "The area of a rectangular garden is given by the trinomial x to the 2nd power plus x -42. What are the possible dimensions of the rectangle? Use factoring.

### Math - factoring

Solve by factoring: 1.) x^2 - x - 12 = 0

### Math(factoring)

I need help with factoring trinomials completely. My teacher's example is: 2x^2-12x+18 2(x^2-6x+9) 2(x-3)(x-3) I need help with: 6x^2-26x-20 I just can't get this stuff so if you can please help me I'd greatly appreciate it.

### Math - Factoring Trinomials

I need help factoring 2y^2-2y-24. The answer I got was 2(y+3)(y+3). However the correct answer is 2(y+3)(y-4).

### Math (Algebra 2)

Factoring by Using a Quadratic Form Problem: x^4 + 8x^2 - 20 What I have so far: (x^2)^2 + 8(x^2) - 20 a^2 + 8a - 20 For some reason my textbook says to substitute the (x^2) with (a) as you can see in the las step. The next step after that is factoring [a^2 + 8a - 20].

### Algebra

Steps to factoring this x^3 - 8 ? I'm only used to factoring out the x when the x is in the equation like x^ + x + x

### FACTORING HELP ASAP

i don't know how this works.. but im helping my friend with some factoring and i have a few questions

### Precalc factoring

im stuck on factoring (x-1)(2x^3+13x^2+8x-35) do i use synthetic division? if so what zero? thnks.

### Factoring- precalc

im stuck on factoring (x-1)(2x^3+13x^2+8x-35) do i use synthetic division? if so what zero? thnks.

### Algebra Question

When I'm factoring ax^2 + bx + c, is it fine to switch signs in the factoring answer? For example: Can (2x - 5)(3x + 5) become (2x + 5)(3x - 5)?

### Algebra 1-Factoring Help!

Factor completely. if the polynomial is prime, state this. -6x^2-21x-9 I am confused about how to factoring. Thanks!

### math

Which rate of speed is higher. A car completing a 500-mi race in 3 1/3 hours or a car completing a 300-hours in about 2 1/2 hours

### Math

My son's homework asks us to find the product by factoring the tens. The problem is 6 x 2, 6 x 20 and 6 x 200. I see how to do 6 x 2 (memory factor) and the 6 x 20 would be (6 x 2) and (1 x 10) then 12 x 10 = 120 but how does he show his work for 6 x 200 factoring by tens? Help

I'm so lost on this math Hw it's over factoring variables and I don't get it. Like my teach said that we are supposed to have the number and letter in front of everything. For example: -14x^2-7x+21 For factoring I got 7x(-2x-1+3) Because my teacher told me to to combine both 7...

### Math

The California speedway hosts automobile races. Which rate of speed is higher: a car completing a 500 mi race in about 3 1/3 h or a car completing a 300 mi race in about 2 1/2 h?

### Math

2x(x+3) = 0 Is there a way to solve that using the below methods? Substitute zero for f(x) and find the roots of the resulting equation, or graph the function and determine the x-intercepts of the graph. Finding the roots of a single variable equation may involve factoring. ...

### Sally

I have a factoring question; what is 8a^2-8a-30? I've been working on this for a while and I think I understand factoring, but I'm not getting the right answer, which is supposed to be 2(2a-5)(2a+3). Any help would be so appreciated! :)

### MORE MATH

What is the factoring by grouping? When factoring a trinomial, why is it necessary to write the trinomials in four terms? I will be happy to critique your thinking on this. I do not understand to even answer it? (Broken Link Removed) (Broken Link Removed) How do we determine ...

### factoring

Factor completely: 2x2 – 50 To indicate x squared, use this notation — x^2. 2x^2-50 = 2(x^2-25) You should be able to continue the factoring with the site that Lance has given you. I hope this helps. Thanks for asking.

### math

Which is faster a car completing a 500 race in about 3.33 hours or a car completing a 300 mile race in 2.5 hours

i am doing factoring with quadratic trinomials, And I don't understand any of it! The problem im working on is 5p2-22p+8 I factored it out to be (5p2-20p)(40p2-2p) I am so stuck, can anyone help

### Algebra

1)Solve by factoring:5x^2=4-19x answer=-4,1/5 2)Which quadratic equation has roots 7 and -2/3? answer=A A.2x^2-11x-21=0 B.3x^2-19x-14=0 C.3x^2+23x+14=0 D.2x^2+11x-21=0 3)To solve 4x^2-28x+49=25 by using the square root property,you would first rewrite the equation as answer=(...

### Use completing the square to...

Use completing the square to describe the graph of the following function support your answer graphically. f(x)=-2x^2+4x+1

### Math- Prob Stat

The amount of time a student spends completing homework per week their senior year is normally distributed with a mean of 5 hours and a standard deviation of 1.4 A. Find the probability a randomly selected student spends less than 3 hours completing homework B. Find the ...

### Math - Algebra

A. Solve the following quadratic equations. Make sure to show all your work. Do not use any method (e.g. factoring, completing the square, quadratic formula, graphing) more than twice. Use the graphing method at least once. 1. 3x+2 + 11x -20 =0 2. x2 + 3x -4 =0 3. 3x2 - x - 1...

### math

6. Solve by factoring. m² + 8m + 7 = 0 (1 point)8, 7 –7, 1 *–7, –1 7, 1 7. Solve by factoring. n² + 2n – 24 = 0 (1 point)–12, 2 –2, 12 *–6, 4 –4, 6 Please Help

### Algebra 2

Solve by completing the square. a² - 2√(3a) + 2 = 0 Solve for x. I don't know if you can use completing the square for this problem. ax^n + b = 0

### Completing the square

Please show the procedure for answering this quadratic equation using the completing the square method: x^2+14x+98 I think i understand the basics of the method, but in this particular question I'm finding it hard to use the appropriate factors of 98 - 7 and 14 - to factorize ...

### Algebra

What is factoring by grouping? When factoring a trinomial by grouping, why is it necessary to write the trinomial in four terms?

### factoring

let f(m)=m^3 + 3m^2 + 3m + 1 notice f(-1) = 0, so m+1 is a factor. Using division, the answer is m^2 + 2m + 1 which factors once more to (m+1)(m+1) so you have (m+1)^3 = 0 and then m = -1 Are you familiar with Pascal's triangle? Did you notice the pattern in the coefficients 1...

### Algebra

I am having issues with factoring. I am trying to check my work using a TI84 Plus calculator but I don't know how to plug in a problem to check its factoring. Can anyone help? for example 44y^3+55y^2-11xy how can I go about plugging that in to check my work?

### Algebra: factoring

I need to find the value of x. 9x^3 + 9x = 30x^2 It's confusing because apparently I have to do 9x^3 + 9x and then add the + 30x^2 to it, and then make it equal 0, so it ends up like this: 9x^3 + 9x + 30x^2 = 0 And afterward, I would factor it. How do you factor it? I'm having...

### Pre-Calculus (Check)

Please tell me what I'm doing wrong... The side lengths of tops of three squares tables can be described as three consecutive integers. The combined area of the table tops is 677 sq in. Algebraically, determine the roots of the quadratic equation. (I'll use quadratic, but if ...

### algebra,math

My qustion is for the following the problem reads as follows (x-1)^2 = 7 x-1=+- sqrt 7 x= 1+- sqrt 7 the method they use was factoring in order to simplify the equation to make it easier is this correc? x^2-9x-4=6 x^2-9x-10=0 (x-10)(x+1)=0 What method did they use here I think...

### Algebra 1-Factor by Grouping Help!

Factor. Use factoring by grouping even though it would seem reasonable to first combine like terms 3u^2-7-21u+49 Would be the same procedure as factoring polynomial? Thanks!

### Algebra II

Need help please. Thank you. 1. Determine whether the function has a maximum or minimum. State that value. f(x)= -2x^2-4x 2. Determine what c would in order to complete the square. x^2-5x+c 3. Solve the quadratic by factoring. 3x^2-16x+5=0 4. Solve the quadratic by factoring. ...

### DQ

What is factoring by grouping? When factoring a trinomial by grouping, why is it necessary to write the trinomial in four terms?

### Algebra 2

Completing the square method allows you to solve any quadratic equation. For each of the following determine what number completes the square. I cannot find my notes on completing the square, can someone please help with these two problems? 1. x^2+8x 2. y^2+10y i don't know ha...

### Algebra 1

Well we are doing factoring and I don't quite understand this problem: (x+1)(x-3)=117 I simplified and got: x^2-3x+x-3=117 x^2-2x-3=117 x^2-2x-120=0 I split the middle term and got: x^2-12x+10x-120=0 What should I do next? I have no idea how to finish factoring this... thanks...

### SMART Goals

Rewrite the following goal to make it S.M.A.R.T I want to do well in school this year. -I want to get As and Bs in all my subjects during my 10 month school year and be on the Role of Distinction. I will spend 2 hours everyday after school from 3-5 completing my homework and ...

### math

completing the square of x^2-3x-8=0

### math,correction

Is this correct now. Problem #1 solve by completing the square. 2x^2+8x+3=0 My answer: x=-2 +/- sqrt (5)/(2) Problem #2 solve by using the quadratic formula 5x^2+3x+1=0 My answer: No solution are defined. You are not completing the square. 2x^2+8x+3=0 x^2 + 4x =- 3/2 now ...

### algebra

1)Solve by factoring:5x^2=4-19x answer=-4,1/5 2)Which quadratic equation has roots 7 and -2/3? answer=A A.2x^2-11x-21=0 B.3x^2-19x-14=0 C.3x^2+23x+14=0 D.2x^2+11x-21=0 3)To solve 4x^2-28x+49=25 by using the square root property,you would first rewrite the equation as answer=(...

### math

2x^2+x-28=0 Solve by completing the square

### math

4x^2+4x=3 solve by completing the square

### math

x^2-6x-7=0 Completing the square need help

### Math

Solve by completing the square: x^2=5x+2

### math

Solve by completing the square: x^2=5x+2

### Math

Solve by completing the square x^2+4x-21=0 Help how do I do this???

### Math

Solve by completing the square, 8x^2+4x-4=0

### Math

Rewrite by completing the square x2 + x + 1

factoring

2h^2-h-3=0

2w(4w+1)=1

### math

n^2+8n+12 factoring

### mATH

x^2+3x-4=50 how do i do this by factoring

### 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, determine whether ...

### math

solve the equation by completing the square: x^2-9x-2=0

### math

solve for x x^2+45=6x. is this like completing the square

### Math

Solve the equaton by completing the square. 4x^2-8x-3=0

### Math

Transform the equation by completing the square: y^2 + 2x - 6y - 7 = 0

### math

Transform the equation by completing the square: 4x^2 + y^2 - 8x + 6y -3 =0

### Math

Solve the equation by completing the square. 2x^2 + 9x + 1 = 0

### math

Rewrite by completing the square. 2x^2 - 12x + 11

### Math

How do you solve the equation by completing the square X^2+4x=10

### Math

ax^2+bx+c=0 solve by using completing the square.

### math-factoring

how do you factor this 8x^3+27

### math

how do you finish factoring 3x(x^2-2x-8)

### math

solve by factoring 6x - 5 = 6/x

### math

factoring strategy 9x^2 + 4y^2

### math

how do i solve by factoring x^4+2x^2y^2+9y^4

### math

solve by factoring. x^2+5x+6=0