Simplify (-8x^2+3)+(-9x^2+3x-3)

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

Step 1

Remove parentheses.

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

Step 2

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 $0$ .

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

Step 3

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

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