Pre-Algebra Examples

$(2 x^{3} + 7 x^{2} + x) + (2 x^{2} - 4 x - 12)$

Step 1

Remove parentheses.

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

Step 2

Add $7 x^{2}$ and $2 x^{2}$ .

$2 x^{3} + 9 x^{2} + x - 4 x - 12$

Step 3

Subtract $4 x$ from $x$ .

$2 x^{3} + 9 x^{2} - 3 x - 12$

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