Algebra Examples

$z (x + y) + 4 (x + y)$

Step 1

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

$(x + y) z + 4 (x + y)$

Step 2

Factor $x + y$ out of $4 (x + y)$ .

$(x + y) z + (x + y) \cdot 4$

Step 3

Factor $x + y$ out of $(x + y) z + (x + y) \cdot 4$ .

$(x + y) (z + 4)$