Pre-Algebra Examples

$(2 x^{8} - 6 x^{4} + 5 x^{2} + 4) + (2 x^{7} + 4 x^{4} - 3 x)$

Step 1

Remove parentheses.

$2 x^{8} - 6 x^{4} + 5 x^{2} + 4 + 2 x^{7} + 4 x^{4} - 3 x$

Step 2

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

$2 x^{8} - 2 x^{4} + 5 x^{2} + 4 + 2 x^{7} - 3 x$