Precalculus Examples

$a (x + y) + b (x + y)$

Step 1

Factor $x + y$ out of $a (x + y)$ .

$(x + y) a + b (x + y)$

Step 2

Factor $x + y$ out of $b (x + y)$ .

$(x + y) a + (x + y) b$

Step 3

Factor $x + y$ out of $(x + y) a + (x + y) b$ .

$(x + y) (a + b)$

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