Pre-Algebra Examples

$3 x^{2} + 2 x - 5$ and $- 4 + 7 x^{2}$

Step 1

Add the expressions.

$3 x^{2} + 2 x - 5 - 4 + 7 x^{2}$

Step 2

Add $3 x^{2}$ and $7 x^{2}$ .

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

Step 3

Subtract $4$ from $- 5$ .

$10 x^{2} + 2 x - 9$

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