Pre-Algebra Examples

$(7 y^{2} + 2 y - 3) + (2 - 4 y + 5 y^{2})$

Step 1

Remove parentheses.

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

Step 2

Add $7 y^{2}$ and $5 y^{2}$ .

$12 y^{2} + 2 y - 3 + 2 - 4 y$

Step 3

Subtract $4 y$ from $2 y$ .

$12 y^{2} - 2 y - 3 + 2$

Step 4

Add $- 3$ and $2$ .

$12 y^{2} - 2 y - 1$

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