Question

please solve this question I will you with the brain list​

Answer 1

Answer:

class

....

....

Step-by-step explanation:

class...

.

Answer 2

Answer:

$=6x^3 - \frac{7x^2}{5}$

Step-by-step explanation:

$=3x^3+3x^3- \frac{-2x^2}{5} - x^2\\\\= 6x^3 \frac{-2x^2 - 5x^2}{5}\\\\=6x^3 - \frac{7x^2}{5}$