Which equation has exactly one real solution? A 4x^2– 12x– 9 = 0 B 4x^2+ 12x+ 9 = 0 C 4x^2– 6x– 9 = 0 D 4x2+ 6x+ 9 = 0 Please teach me how to do this
60,381 results
Algebra 1
1) what is the simplified form of (x2)(2x+3)? Use the distributive property. A) 2x^2x6 B) 2x^26 C)2x^27x6 D) 2x^2 +x6**** 2) what is the simplified form of (3x+2)(4x3) use a table. A)12x^2+18x+6 B) 12x^2+x6 C) 12x^2+18x6**** D)12x^2x6 3) what

Math
1. What is the solution of n^49=0 A. 7 B. 7 C. += 7*** Sorry I couldn't find this symbol D. no solution 2. What is the solution of x^2+64=0? A. 5 B. 8 C. += 8 D. no solution*** 3.What is the side length of a square with an area of 144x^2? A. 12 B.

Algebra 2(quadratic)
Use the value of the discriminant to determine the number and type of roots for the equation: (x^2+20=12x16) 1 real, irrational 2 real, rational no real 1 real, rational

Algebra HELP:(
Use the discriminant to determine how many realnumber solutions the equation has. 36x2  12x + 1 = 0 How do I do this?

pre cal
What is the center of the conic whose equation is x^2 + 2y^2  6x + 8y = 0 2.Which one of the following equations represents a hyperbola? (5 points) A) 3x^2 + y^2 + 12x  7 = 0 B) 3x^2 + 3y^2 + 12x  7 = 0 C) 3x^2 + y + 12x  7 = 0 D) 3x^2  3y^2 + 12x  7

Calculus!! HELP!!
1) The sides of the triangle shown increase in such a way that (dz/dt=1) and (dx/dt=(3dy/dx)) At the instant when x = 12 and y = 5, what is the value of dx/dt? 2) Let f(x) = x^3 − 4. Which of these is the equation for the normal line to this curve at the

math
Which linear equation represents a nonproportional relationship? A) y = 0.2x B) y = 12x C) y = −12x D) y = −12x + 5 i don't know how to do this or what it means, please help me

Algebra 1
A square painting is surrounded by a frame. the outside edges of the frame are x inches in length, and the frame is 3 inches thick. What is the total area of the frame? A)12x+36 B)12x36 C)x^2+12x+36 D)x^212x36 Is it C or D?

Algebra
What is the side length of a square with an area of 144x²? A.12 B.12x C.±12x D.no solution I think it is C...?

help...solving a polynomial....algebra
solve this please....help me....12x(squared)+7x10 Do you wish to factor this trinomial? If so, the factors are: (4x + 5)(3x  2) You can use the FOIL method to check. If this is supposed to be an equation: 12x^2 + 7x  10 = 0 ...then set each factor equal

Alg II
I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^46x^3+12x^2=6x13 I used a graphing calculator to find the real roots of 1,1 Then I did synthetic using 1, and I ended up with the equation

Math
Which expression is the expanded form of p(x)=4(x−7)(2x2+3)? 8x3−56x2+12x−84 8x3+56x2−12x−84 32x3−224x2+48x−336 −48x2+12x−84 I believe it is 8x3−56x2+12x−84 if I am wrong can you explain

Algebra. Please check my answers
Evaluate a/b+c^d for a=6,b=3,c=4 and d=5 A.42*** B.18 C.82 D.360 What is the simplified form of the expression ? (12x8y) A.12x+8y B.12x8y***** C.12x+8y D.12x8y

Algebra
To solve 9x^212x+4=49 by using the Square Root Property, you would first rewrite the equation was as A. 9x^212x45=0 B.(3x2)^2=+/49 C.(3x2)^2=7 D.(3x^2)^2=49

Algebra
What is the vertex form of the equation? y = x^2+12x4 My work: (x^2 + 12x)4 (x^2 + 12x + 36)4 + 36 Y= (x+36)^2 + 32 Is this correct? I am not sure if I did this right or not? Thank you!

algebra
(12x8y) i am a little confused by this. would the negative make 12x into 12x, and then 8y becomes +8y instead? would it be 12x+8y

Algebra
Which choice could be the equation of a line parallel to the line represented by this equation? 7x− 12y = −32 A. y = 12/7x  3 B. y = 7/12x + 5 C. y = 7/12x  9 D. y = 7x  12 can someone please give me a stepbystep on how to do this? i'm having a

Calculus
Q.a.Find the stationary points on the graph of y=12x+3x^22x^3 and sketch the curve. b.How does your sketch show that the equation 12x+3x^22x^3 =0 has exactly three real roots. c.Use your graph to show that the eequation 12x+3x^22x^3 = 5 also has

math
I HAVE THESE ANSWERS FOR THE PROBLEMS. COULD YOU DOUBLE CHECK PLEASE, THIS IS A PRACTICE QUIZ WHICH ISN'T A GRADE IT JUST HELPS ME GET READY FOR THE TEST. 1) a 2) b 3) d 4) a 5) d 1. Solve x^3 + 6x^2 + 13x + 10 = 0. a) –2 + 2i, –2 –2i, –2 b) 2 + i,

math
3x^2+6x/2x^211x+12  2x^25x+3/x^2+x2 ÷ 4x^212x+9/x^24 I got 3x^3+2x^212x+8 / (x1)(2x3) (x4) Is this right please show your steps so I can understand! Thanks I greatly appreciate your help! Iwas just wondering wen my question be answered...thanks

math
The radius of a cylinder is 3x2 cm. The height of the cylinder is x+3 cm. What is the surface area of the cylinder? The choices are: 2pi(3x^2 + 10x  8) 2pi(12x^2 + 7x  2) 2pi(12x^2  2x + 13) 2pi(12x^2  5x  2) Please help me in setting this up and

math
Megan factored the expression (12x^2+52x35) as (2x+5)(6x7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x7) he got (12x^2+44x35),thus megan's solution does not appear to check please help megan to understand better.Explain your

Derivatives
What is the fourth derivative of f(x)= e^x^2. I got f''(x)=2e^x^2 + 4x^2e^x^2 i need some help on find f''''(x) You have f(x) = ex2 then f'(x) = 2x*ex2 = 2x*f(x) f"(x) = (4x2  2))ex2 = f(x)*(4x2  2)) f"'(x)= f'(x)*(4x2  2)) + f(x)(8x) =

Algebra
Can someone please check my work for me. Q: Plot the graph of the equations 2x  3y = 5 and 4x  6y = 21 and interpret the result. A: 6(2x ¨C 3y = 5) = 12x ¨C 18y = 30 3(4x  6y = 21) = 12x  18y = 63 12x ¨C 18y = 30 + 12x  18y = 63 0 ¡Ù 93

Algebra
I have worked this and checked it and it does not come out true any one help me? 3x5(3x7)=2(x+9)+45 3x15x35=2x+18+45 12x35=2x+63 +35 +35 12x=2x+98 2x 2x 10x=98 x=98/10 x=9 8/10 checking it i get 152 3/5 and 43 2/5 Help where did I go wrong?

Algebra 2 (Math)
Divide 3x^3 + 3x^2 + 2x – 2 by x + 3 using long division. Check my answer please. 3x^2 – 6x + 20 3x^2 + 12x – 16 3x^2 + 12x – 16, R 58 3x^2 – 6x + 20, R 62 (I think that it's this one)

math
solve the equation for x. write the solution set . x2 + 12x = 0

Algebra
What is the side length of a square with an area of 144x²? A.12 B.12x C.±12x D.no solution I think it is C...? If I am right can you show your work please...I am just starting to understand these..thank you

Algebra
I'm not sure how to factor 3x^312x^2+3x. I tried separatring the 3x so that 3x(x+1)(x4, but I got 3x^3+12x^23x^2+12x. Can you show me where I went wrong and how to properly factor this? Is there a general rule or tip for this sort of factoring with a

Math
you know that 8x = 5y you know that 3y=14z since 5 = (5/3)*3, 5y = (5/3)*(3y) so, 5y = (5/3)(3y) = (5/3)(14z) = (70/3)z now you have 5y, which is the same as 8x. You want 12x. since 12 = (3/2)*8, 12x = (3/2)*8x. 12x = (3/2)(8x) = (3/2)(5y) = (3/2)(70/3)z =

college algebra
hw to solve equation in the real number system, x^4 +12x^3 +10x^29x+9x+22=0

algebra
What is the solution of n² – 49 = 0? A. –7 B. 7 C. ±7*** D. no solution What is the solution of x² + 64 = 0? A. –5 B. 8 C. ±8*** D. no solution What is the side length of a square with an area of 144x²? A. 12 B. 12x C. ±12x*** D. no solution

Algebra
Solve for y in terms of x . Determine if y is a function of x . If it is, rewrite using notation and determine the domain. xsquared+12x3y+9=0 is it xsquared + 12x +9=3y f(x)=xsquared + 12x + 6=y ?

Intermidiate Algebra
Andrew factored the expression 12x^328x^23x as 4x (3x^27x+9). But when Melissa applied the distributive law and multiplied out 4x (3x^27x+9), she got 12x^3+28x^236x; thus, Andrew’s solution does not appear to check. Why is that? Please help

Geometry
Which equation has exactly one real solution? A 4x^2– 12x– 9 = 0 B 4x^2+ 12x+ 9 = 0 C 4x^2– 6x– 9 = 0 D 4x2+ 6x+ 9 = 0 Please teach me how to do this

Polynomial Fucntion Problem
Could you help me with the following problem, I don't understand how to do it. Am I suppose to use the linear factorization theorem? Find an nth degree polynomial function with real coefficients satisfying the given conditions. 1. n=3; 3 and i are zeros;

algebra2
1/3  5/6 = 1/X SOLVE 1/3  5/6 = 1/X Let's remove the denominators by multiplying by 12X 12X*(1/3)  12X*(5/6) = 12X*(1/X) Clear the fractions. 4X  10X = 12 6X=12 multipy by 1 6X=12 Divide both sides by 6 6X/6 = 12/6 X = 2 Check my work.

Algebra 1 Please, check my answers!
1. What is ((12x^6 + x)) / ((4x^2))? A: 3x^4  1/4x 2. What is the greatest common factor of the terms of the polynomial 6x^3  18x^2 + 12x + 3? A: 3? 3. Which is a solution to n/n+2 = 8/n? a. 4 b. 2 c. 2 d. 4 A: a? 4. Which of the following is

math
The rectangle given has a perimeter of 14 units. Find the value(s) of x by factoring a quadriatic equation. one side= 12/(x+1) other side= 6/(4x) Remember that the perimeter of a rectangle is: P = 2L + 2W Note: P = perimeter, L = length, and W = width.

calc
What is dy/dx of y=12/12Xy^3 ???? Any idea anyone??? y=12/12Xy^3 I assume you mean... y=12/(12Xy^3) 12Xyy^4=12 12x dy/dx + 12y 4y^3 dy/dx=0 dy/dx (12x 4y^3)=12y solve for dy/dx

math
how do i do x2+12x+32 x2+12x = 14x+32 subtract 14x from each side 14x=32 divide by 2 7x=16 x=16/7, which is 2 and 2/7 ok maybe you typed that question wrong? is it x^2 + 12x + 32 ? if it is then the solution is: (x+8)(x+4) because when you multiply them

algebra1
could you walkthrough the steps to solving this problem because I am stuck; 3x5(3x7)=2(x+9)+45 Let me know if you have a question in any step. 3x5(3x7)=2(x+9)+45 3x15x+35= 2x+18+45 12x+35 = 2x+63 35 35 12x= 2x +6335 12x= 2x +28 2x 2x 12x2x

math
Solve the system:4x+2y13=0 and 3x=5y+26 by elimination. 3 (4x+2y13=0) 12x+6y26=0 4 (3x=5y+26) 12x=20y+104 I need to subtract since the signs are the same: 12x+6y26=0 Since they don't match up, I'm having trouble subtracting them. I'm not sure what to

algebra
5x 3 = 11 + 12x combine like figures add 3 to both sides to remove the 3 5x= 14+ 12x Now I get confused. If I remove the 12x I have to subtract 12x from 5x which gives me an answer of 7x=14 would the correct answer thus be x= 2? thanks

algebra
24x^412x^3+48x^2/4x 24x^412x^3+12(1) 24x^412x^3+(12x) 2x^412x^312x check this problem for me please

math
write this equation in standard form. y=1/2x2+12x8 y equals one half x squared plus 12x minus 8

PreCal
I'm trying to put this parabola in standard form which is: (yk)^2=4p(xh) The equation is x=(1/12)(y2)^2 +6 Here is what i have so far: x=(1/12)(y2)^2 +6 6 6 x6=(1/12)(y2)^2 *12 *12 Would it be 12x6 OR 12x72? thanks

Algebra
Can someone help me with this please. Andrew factored the expression 20x^312x^2+8x as 4x(5x^212x^2+8x) but when melissa applied the distributive law and multiplied out 4x(5x^212x^2+8x)she got 20x^348x^3+32x thus Andrews solution does not appear to

Algebra
Please help me with this Algebra problem: The length of a rectangle is 91 less than six times the width of the rectangle. If the perimeter of the rectangle is 84 centimeters, what is the length of the rectangle? Write a system of equations for this

algebra
Andrew factored the expression 20x^312x^2+8x as 4x(5x^212x^2+8x). But when Melissa applied the distributive law and multiplied out 4x(5x^212x^2+8x),she got 20x^348x^3+32x^2; thus, Andrew's solution does not appear to check. Why is that? Please help

Algebra
Andrew factored the expression 20x^312x^2+8x as 4x (5x^212x^2+8x). But when Melissa applied the distributive law and multiplied out 4x (5x^212x^2+8x), she got 20x^348x^3+32x^2; thus, Andrew’s solution does not appear to check. Why is that? Please

Algebra 2 Conics
The directions are : Write each equation in standard form (if needed), then find appropriate information for the particular conic. the question: y=2x^212x+19 HOW DO I BEGIN??? Complete the square and rewrite as y = 2x^212x + 19 = 2(x^2  6x + 9)+ 19  18

algbrea
3x5(3x7)= 2(x+9) + 45 3x15x+35= 2x+18 +45 12x + 35 = 2x+63 12x 28 = 2x 12 28 =x 40 =x 3x5(3x7)= 2(x+9) + 45 3x15x+35= 2x+18 +45 12x + 35 = 2x+63 10x+35=63 10x=28 x=2.8 you are both wrong! 3x  15x + 35 = 2x + 18 + 45 12x  2x = 63  35

math
Please explain how to get the answer. At the animal shelter, 1/3 of the animals are dogs, 2/12 are cats, and 19 are other animals. How many animals are at the shelter? I said 1/3x + 2/12x + 19 = 4/12x + 2/12x = 19= 6/12x = 19 1/2x = 19 x =

Math
Is the LCD of x/2x4 and 5x/12x24 not 24(x2)? The original question is x/2x4 + 5x/12x24 and I factored the denominators first so that I could find the LCD. And I got: x/2(x2) + 5x/12(x2) After that, I multiplied up to the LCD and got: x/2(x2) +

Math
1. What is the solution to n^2 49=0 A.7 b.7 c. (upside down T in front of the 7) 7*** d. no solution 2. what is the solution of x^2 +64=0 a. 5 b. 8 c. (upside down T in front of the 8) 8 d. no solution*** 3.What is the side length of a square with the

chemistry
The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

chem
The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

Chemistry
The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

Physics
(a) How far from a 53.6 mm focallength lens must an object be placed if its image is to be magnified 2.12X and be real? (b) What if the image is to be virtual and magnified 2.12X?

algebra
find a third degree polynomial equation with coefficients that has roots 4 and 6+i possible answers x^38x^211x+148=0 x^38x^212x+37=0 x^312x^2+37x=0 x^38x^211x=0

Math: please help
what is an equation of the line in slope intercept form? m=2/7 and the yintercept is (0,12) A.) y=2/7x+12 B.) y=2/7x12 C.) y=12x2/7 D.) y=12x+2/7 I think the answer is C or D. I help. I don't really know how to do it. Thank You.

college algebra
how to solve equation in the real number system, x^4 +12x^3 +10x^29x+9x+22=0

algebra
(12x+1)(x1)=3 12x^+1=3 12x^=13 x=1/3 check this problem

Algebra
If a is a real number and a cubic equation f(x)=x^3−12x^2+(a+20)x−2a has a repeated root, what is the sum of all the possible values of a ?

Urgent Math please check
Very Important I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they are right, but just need a fresh set of eyes. I know I've been sending alot, but I really

math
Could you please solve so I can double check my answers for the practice quiz? Thank You!! 1. Solve x^3 + 6x^2 + 13x + 10 = 0. a) –2 + 2i, –2 –2i, –2 b) 2 + i, 2 – i, –2 c) –2 + i, –2 – i, –2 d) 2 + 2i, 2 – 2i, –2 2. Find the

Polynomial Doublecheck2
I asked this earlier, but I didn't get an answer. I'm glad though, because I found a couple of typos. I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they

algebra 1 help
5) give one solution to the inequality 12x3x+11

Algebra II
Find the equation of the line that passes through the points (1,4) and (2,8). Question options: y = 3x + 9 y = 6x + 5 y = 12x + 16 y = 12x  8 < this one is wrong.. I thought I had it right so how do I find the correct answer? i'm not getting any of the

math
Find the solution x of the following equation : 12X =32.

Algebra problem
Multiply (x5/4x+8)*(12x^2+32x+16) A. (3x+2)/4(x5) B. (x5)(3x+2)/4 C. (x5)(3x+3) D. (x5)(12x+8) Please help me solve this problem because all I get is 3x^213x10 (which isn't a choice.)

Algebra 2
Simplify the polynomial [(6x8)2x][(12x7)(4x5)]. I came up with two answers: 36x^2  72x + 35 or 12x^2 + 8x  2 Are either one of these the correct answer?

Algebra
What polynomial could you subtract from 5x^3  12x  x^2 + 9  12x^5  6x^4 to give a difference of 19 + 8x^3  18x  19x^5  2x^2  8x^4?

algebra
How do you factor 4x(squared)+12x+40? Thanks! 4x2+12x+40= 4(x2+3x+10) Is there any way to get it like ( ) *( )? I don't think the term within the parentheses can be factored. The only factors of 10 are 10*1 and 5*2 and neither of those will add to 3.

algebra
What is the equation for the line of best fit that matches the data shown in the table and in the graph? x y 7 9 3 6 1 3 2 1 6 1 A. y = 0.79x  3.12 B. y = 0.79x + 3.12 C. y = 3.12x  0.79 D. y = 3.12x + 0.79 i can't show the graph here but it's

Algebra
Simplify 8x^3 over 12x^4 (8x^3/12x^4) Would this involve: first multiplying both sides  one by 4 and one by 3 to get the same x^12 value and then simplifying from there?

Hard algebra qestion
3x^2+6x/2x^211x+12  2x^25x+3/x^2+x2 ÷ 4x^212x+9/x^24 I got 3x^3+2x^212x+8 / (x1)(2x3) (x4) Is this right please show your steps so I can understand! Thanks I greatly appreciate your help!

Math
f(x) = 3x^2 , g(x) = 3x1, and m(x) = 4x Find and simplify the composition function g(m(f(x))) answers i got which were wrong 3x1(12x^3) 36x^412x^3 Maybe i am putting the information in incorrectly.. Should it look like this (3x^2(4x(3x^2))) then solve?

Math
what is the greatest common factor of 12x and 36? im confused, would it be 12 or 12x?

Geometry
Use the slope of AB to determine which line below, if any, is parallel to AB. A(1,8) B6,4) a. y = 5/12x + 5 b. y = 5/12x + 5 c. y = 12/5x + 5 d. none

math
find the slope and yintercept of the graph of the equation. explain each step and how you got it. 12x + 4y= 24 first you move the 12x to the other side of the equation to isolate the 4y Divide the whole equation by 4 to give a single y this gives you

math
find all solution sets to the equation 2x^3+12x^2+50x=o

Algebra
Megan factored the expression 12x^2 +52x35as (2x+5)(6x7). But when Jacob applied the FOIL principle and multiplied out (2x+5)(6x7), he got 12x^2+44x35; thus, Meganâ€™s solution does not appear to check. Why is that? Please help Megan to

math
Megan factored the expression (12x^2+52x35) as (2x+5)(6x7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x7) he got (12x^2+44x35),thus megan's solution does not appear to check please help megan to understand better.Explain your

algebra
Megan factored the expression (12x^2+52x35) as (2x+5)(6x7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x7) he got (12x^2+44x35),thus megan's solution does not appear to check please help megan to understand better.Explain your

algebra
Megan factored the expression (12x^2+52x35) as (2x+5)(6x7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x7) he got (12x^2+44x35),thus megan's solution does not appear to check please help megan to understand better.Explain your

algebra
Megan factored the expression (12x^2+52x35) as (2x+5)(6x7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x7) he got (12x^2+44x35),thus megan's solution does not appear to check please help megan to understand better.Explain your

math,algebra
(3^1X^3)^2 x 12X^5 my work: 3/2X^6 x 12X^5= 36/2=18X^11 but the answer was 4/3X^11

math
24x^412x^3+48x^2/4x=6x^3+3x^2+12x check this for me.

Math help update
let f(x) = 12x^2 +7x10. Find x such that f(x)=0 a.) 4/5, 5/3 b.) 5/4, 2/3 c.) 2/5, 5/3 d.) 5/3, 2/3 I think I have it. I was able to factor out 12x^2 +7x10 to (4x+5) (3x2)=0 The answer is 5/4 and 2/3 right?

math
I solved this problem 12x6=11x 6+6=0 11x+6 12x=11x+6 12x11x=x 11x11x=0 x=6 Can someone show me the process of checking it?

Alg II
I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^46x^3+12x^2=6x13 I used a graphing calculator to find the real roots of 1,1 Then I did synthetic using 1, and I ended up with the equation

calculus
i need to find the derivative using chain rule: (x^2 + 2x  6)^2 (1x^3)^2 i got the answer from a site but the problem is i cannot get my work to match up with the answer, i don't know what im doing wrong. answer: 10x^9 + 36x^8 − 64x^7 − 182x^6 +

algebra
solve the following equation by clearing fractions show all work want to know if this right 7/35/2x=8+2x 6(2/3)(5/2x)(6)=6(8)+2x(6) 14x15=48+12x 14x12x15=48+14x14x 2x15=48 2x15+15=48+14x14x 2x15=48 2x15+15=48+15 2x=33 2x/2x=33/2 x=33/2

algebra
Megan factored the expression 12x^2+13x14 as (3x+2)(4x7). But when Jacob applied the foil principle and multiplied out(3x+2)(4x7), he got 12x^213x14; thus, Megan's solution does not appear to check. Why is that? Please help Megan to understand this

algebra
solve the following equation by clearing fraction want to know if this right 7/35/2x=8+2x 6(7/3)(5/2)(6)=6(6)+2x(6) 14x15=48+12x 14x12x15=48+14x14x 2x15=48 2x15+15=48+15 2x=33 2x/2x=33/2 x=33/2

math
Let A and B be real numbers such that A/(x5)+B(x+1)=(3x^2+12x+22)/(x5) What is A+B

math
Can someone please help me with these few problems here? Find the holes and points of discontinuity: 12x^4+10x3  x1 and 12x+24  x^2+2x In the first, examine x=1 and in the second, examine x=2. Look at the numerator also at that same

Algebra 1
Rewrite the polynomial in descending order in its simplest form. here is #1 12x^2 y^2 z^3+2+24x^2 I think it should be writen 12x^2y^2Z^3+24x^2+2 then there is also question #6 I need help with is it x+y+xy+3x+4x^2 I think it should look like this