Pre-Algebra Examples

$(x^{2} + 6 x - 5) + (2 x^{2} + 15)$

Step 1

Remove parentheses.

$x^{2} + 6 x - 5 + 2 x^{2} + 15$

Step 2

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

$3 x^{2} + 6 x - 5 + 15$

Step 3

Add $- 5$ and $15$ .

$3 x^{2} + 6 x + 10$

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