Pre-Algebra Examples

$(18 x^{2} - 18) + (- 13 x^{2} - 13 x + 13)$

Step 1

Remove parentheses.

$18 x^{2} - 18 - 13 x^{2} - 13 x + 13$

Step 2

Subtract $13 x^{2}$ from $18 x^{2}$ .

$5 x^{2} - 18 - 13 x + 13$

Step 3

Add $- 18$ and $13$ .

$5 x^{2} - 13 x - 5$

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