Simplify x^2+3x-7-4x^2+5x-2

$x^{2} + 3 x - 7 - 4 x^{2} + 5 x - 2$

Step 1

Subtract $4 x^{2}$ from $x^{2}$ .

$- 3 x^{2} + 3 x - 7 + 5 x - 2$

Step 2

Add $3 x$ and $5 x$ .

$- 3 x^{2} + 8 x - 7 - 2$

Step 3

Subtract $2$ from $- 7$ .

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