Answer:
4x^4-4x^3-16x^2+16x
Explanation:
To do this problem, you have to multiply the top equation by the bottom. To do this, you would multiply each term of x^2+x-2 by (-8x) and (4x^2). Think of it like the distributive property. We multiply (x^2) with (-8x) and so on. With the -8x term we get (-8x^3-8x^2+16x).
Now you do the same for the term 4x^2 to get (4x^4+4x^3-8x^2).
Then you combine like terms to get 4x^4-4x^3-16x^2+16x.