Pre-Algebra Examples

$(- 5 x^{2} + 6 x + 7) + (- x^{2} + 4 x)$

Step 1

Remove parentheses.

$- 5 x^{2} + 6 x + 7 - x^{2} + 4 x$

Step 2

Subtract $x^{2}$ from $- 5 x^{2}$ .

$- 6 x^{2} + 6 x + 7 + 4 x$

Step 3

Add $6 x$ and $4 x$ .

$- 6 x^{2} + 10 x + 7$

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