Pre-Algebra Examples

$(x + 2 x^{2}) + (4 x^{2} + 7 x)$

Step 1

Remove parentheses.

$x + 2 x^{2} + 4 x^{2} + 7 x$

Step 2

Add $x$ and $7 x$ .

$2 x^{2} + 4 x^{2} + 8 x$

Step 3

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

$6 x^{2} + 8 x$

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