Basic Math Examples

$(a - 4) (a + 5) + (a - 4) (a - 2)$

Step 1

Factor $a - 4$ out of $(a - 4) (a + 5) + (a - 4) (a - 2)$ .

$(a - 4) (a + 5 + a - 2)$

Step 2

Add $a$ and $a$ .

$(a - 4) (2 a + 5 - 2)$

Step 3

Subtract $2$ from $5$ .

$(a - 4) (2 a + 3)$