Write in Standard Form 9+2x^3-7x^3-2x^3

$9 + 2 x^{3} - 7 x^{3} - 2 x^{3}$

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

$a x^{2} + b x + c$

Combine the opposite terms in $9 + 2 x^{3} - 7 x^{3} - 2 x^{3}$ .

Subtract $2 x^{3}$ from $2 x^{3}$ .

$9 - 7 x^{3} + 0$

Add $9 - 7 x^{3}$ and $0$ .

$9 - 7 x^{3}$

Reorder $9$ and $- 7 x^{3}$ .

$- 7 x^{3} + 9$