Pre-Algebra Examples

$(- 7 x^{3} + 4 x^{2} + 3 x) + (4 x^{3} + 6 x^{2} - 13)$

Step 1

Remove parentheses.

$- 7 x^{3} + 4 x^{2} + 3 x + 4 x^{3} + 6 x^{2} - 13$

Step 2

Add $- 7 x^{3}$ and $4 x^{3}$ .

$- 3 x^{3} + 4 x^{2} + 3 x + 6 x^{2} - 13$

Step 3

Add $4 x^{2}$ and $6 x^{2}$ .

$- 3 x^{3} + 10 x^{2} + 3 x - 13$