Pre-Algebra Examples

$(3 x^{2} - 5 x + 7) + (- 8 x^{2} + 9)$

Step 1

Remove parentheses.

$3 x^{2} - 5 x + 7 - 8 x^{2} + 9$

Step 2

Subtract $8 x^{2}$ from $3 x^{2}$ .

$- 5 x^{2} - 5 x + 7 + 9$

Step 3

Add $7$ and $9$ .

$- 5 x^{2} - 5 x + 16$

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