Pre-Algebra Examples

$(a b^{2} + 13 b - 4 a) + (3 a b^{2} + a + 7 b)$

Step 1

Remove parentheses.

$a b^{2} + 13 b - 4 a + 3 a b^{2} + a + 7 b$

Step 2

Add $a b^{2}$ and $3 a b^{2}$ .

$13 b - 4 a + 4 a b^{2} + a + 7 b$

Step 3

Add $13 b$ and $7 b$ .

$- 4 a + 4 a b^{2} + a + 20 b$

Step 4

Add $- 4 a$ and $a$ .

$- 3 a + 4 a b^{2} + 20 b$

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