Question

Quizizz help pls 10 pts each brainliest guaranteed WITH A PICTURE

Answer 1

Answer:

$9x^3-8x^2$

Step-by-step explanation:

$(7x^3-4x^2)+(2x^3-4x^2)$

Combine $7x^3$ and $2x^3$ to get $9x^3$.

$9x^3-4x^2-4x^2$

Combine $4x^2$ and

9x^3-8x^2

Hope this helps.