Algebra Examples

$4 x^{2} - 15 x - 21 + (3 x^{2} - 10)$

Step 1

Remove parentheses.

$4 x^{2} - 15 x - 21 + 3 x^{2} - 10$

Step 2

Add $4 x^{2}$ and $3 x^{2}$ .

$7 x^{2} - 15 x - 21 - 10$

Step 3

Subtract $10$ from $- 21$ .

$7 x^{2} - 15 x - 31$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$