Pre-Algebra Examples

$3 x^{2} + 2 x - 8 + (x^{2} - 5 x + 10)$

Step 1

Remove parentheses.

$3 x^{2} + 2 x - 8 + x^{2} - 5 x + 10$

Step 2

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

$4 x^{2} + 2 x - 8 - 5 x + 10$

Step 3

Subtract $5 x$ from $2 x$ .

$4 x^{2} - 3 x - 8 + 10$

Step 4

Add $- 8$ and $10$ .

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

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