Pre-Algebra Examples

$(5 x^{2} + 8 x - 10) + (- 12 - x + 3 x^{2})$

Step 1

Remove parentheses.

$5 x^{2} + 8 x - 10 - 12 - x + 3 x^{2}$

Step 2

Add $5 x^{2}$ and $3 x^{2}$ .

$8 x^{2} + 8 x - 10 - 12 - x$

Step 3

Subtract $x$ from $8 x$ .

$8 x^{2} + 7 x - 10 - 12$

Step 4

Subtract $12$ from $- 10$ .

$8 x^{2} + 7 x - 22$

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