Pre-Algebra Examples

$(8 x^{8} - 9 x^{3} + 3 x^{2} + 9) + (4 x^{7} + 6 x^{3} - 2 x)$

Step 1

Remove parentheses.

$8 x^{8} - 9 x^{3} + 3 x^{2} + 9 + 4 x^{7} + 6 x^{3} - 2 x$

Step 2

Add $- 9 x^{3}$ and $6 x^{3}$ .

$8 x^{8} - 3 x^{3} + 3 x^{2} + 9 + 4 x^{7} - 2 x$