Simplify Find the sum of -8x^2+3 and -9x^2+3x-3

Find the sum of $- 8 x^{2} + 3$ and $- 9 x^{2} + 3 x - 3$

Write the problem as a mathematical expression.

$- 8 x^{2} + 3 - 9 x^{2} + 3 x - 3$

Combine the opposite terms in $- 8 x^{2} + 3 - 9 x^{2} + 3 x - 3$ .

Subtract $3$ from $3$ .

$- 8 x^{2} - 9 x^{2} + 3 x + 0$

Add $- 8 x^{2} - 9 x^{2} + 3 x$ and $0$ .

$- 8 x^{2} - 9 x^{2} + 3 x$

Subtract $9 x^{2}$ from $- 8 x^{2}$ .

$- 17 x^{2} + 3 x$