Question

PLZZ could someone help me out with this and explain

Answer 1

3x³+3x so C

Explanation:

Multiply both the given equations

x²(3x) = 3x³

+1(3x)=+3x

Then combine

3x³+3x so C

Answer 2

It would be D because X^2 is different from 3x you would just multiply X^2 by 1 and 3x by 1 to get x^2+3x