divide (8x^4y3+4x^3y^2-2x^2y-12x^2y^4) by -2x^2y

justify each step

Question

divide (8x^4y3+4x^3y^2-2x^2y-12x^2y^4) by -2x^2y

justify each step

noelgreco · Answer

What's to divide?

ranga · Answer

The problem is incomplete.  It is usually divide something by something.  You have not specified what to divide by.

anonymous · Answer

divide (8x^4y3+4x^3y^2-2x^2y-12x^2y^4) by -2x^2y

anonymous · Answer

wooow what?? sorry im not good at math

anonymous · Answer

heres the whole problem 
5.)	Part A: divide (8x^4y3+4x^3y^2-2x^2y-12x^2y^4) by -2x^2y   justify each step

Part B: how would your answer in part A be affected if the x^2 variable in the denominator was just an x?
Part C: what are the degree and classification of the polynomial you got in part A.

ranga · Answer

8x^4y^3+4x^3y^2-2x^2y-12x^2y^4 = 
2x^2y(4x^2y^2 + 2xy - 1 - 6y^3)

Divide 2x^2y(4x^2y^2 + 2xy - 1 - 6y^3) by  -2x^2y
-4x^2y^2 - 2xy + 1 + 6y^3

ranga · Answer

B) If the denominator is changed from x^2 to x, it would be equivalent to multiplying the numerator by x.  And so the answer to A) should be multiplied by x:  -4x^3y^2 - 2x^2y + x + 6xy^3

anonymous · Answer

thanks :)

anonymous · Answer

@ranga  in part a did you simplify the equation before we multiplied?

mertsj · Answer

$$\frac{8x^4y^3+4x^3y^2-2x^2y-12x^2y^4}{-2x^2y}=$$
$$\frac{8x^4y^3}{-2x^2y}+\frac{4x^3y^2}{-2x^2y}-\frac{2x^2y}{-2x^2y}-\frac{12x^2y^4}{-2x^2y}=$$
$$-4x^2y^2-2xy+1+6y^3$$

anonymous · Answer

@Mertsj are you answering part a

anonymous · Answer

because @ranga  already answered that one

anonymous · Answer

part a: -4x^2y^2 - 2xy + 1 + 6y^3
part b:If the denominator is changed from x^2 to x, it would be equivalent to multiplying the numerator by x.  And so the answer to A) should be multiplied by x:  -4x^3y^2 - 2x^2y + x + 6xy^3
part C: third degree polynomial

anonymous · Answer

@Mertsj are those answers right?

mertsj · Answer

b is ok
c is degree 4

anonymous · Answer

i thought the degree was the highest exponent @Mertsj

mertsj · Answer

To find the degree of a polynomial or monomial with more than one variable for the same term, just add the exponents for each variable to get the degree

Degree of x^3y^2. Degree of this monomial = 3 + 2 = 5

anonymous · Answer

are you sure?

anonymous · Answer

@Mertsj  i really feel like its a third degree

mertsj · Answer

This is America.  You have a right to  be wrong.  And I might point out that the correct answer to a math problem is not based on how you "feel" about it.

anonymous · Answer

@Mertsj soo you think its my best bet to put down a fourth degree polynomial?

mertsj · Answer

I think you should ask someone in whom you have confidence.

anonymous · Answer

okay