Pre-Algebra Examples

$(3 x^{2} + 11 x + 4) + (- 5 x + x^{2} - 13)$

Step 1

Remove parentheses.

$3 x^{2} + 11 x + 4 - 5 x + x^{2} - 13$

Step 2

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

$4 x^{2} + 11 x + 4 - 5 x - 13$

Step 3

Subtract $5 x$ from $11 x$ .

$4 x^{2} + 6 x + 4 - 13$

Step 4

Subtract $13$ from $4$ .

$4 x^{2} + 6 x - 9$

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