Question

Please help I don't understand this at all

Write -2x^2(-5x^2+4x^3) in standard form.
A) -8x^5-20x^4
B) -8x^5+10x^4
C) -7x+2x^4
D) -7x^5-10x^4

Answer 1

First you multiply everything in the parentheses by -2x^2

-2x^2 * -5x^2 -2x^2 * 4x^3

Answer 2

Then rearrange the terms in descending order of degree
(For example x^3 would come before x^2)