Precalculus Examples

$7 x^{5} - 2 x^{4} + 3 x^{3} - 2 x^{2} + 7 x - 10 + (5 x - 5)$

Step 1

Remove parentheses.

$7 x^{5} - 2 x^{4} + 3 x^{3} - 2 x^{2} + 7 x - 10 + 5 x - 5$

Step 2

Add $7 x$ and $5 x$ .

$7 x^{5} - 2 x^{4} + 3 x^{3} - 2 x^{2} + 12 x - 10 - 5$

Step 3

Subtract $5$ from $- 10$ .

$7 x^{5} - 2 x^{4} + 3 x^{3} - 2 x^{2} + 12 x - 15$