Question

What am I suppose to do here??

Answer 1

B

Explanation:

Hey There!

To solve this problem we have to combine like terms

`7x^3-6x^3=x^3\\6x^2-8x^2=-2x^2\\-5x+10x=5x\\5-7=-2`

So our answer would be

`x^3-2x^2+5x-2` (b)