Basic Math Examples

$28 r^{2} - 20 r - 30$

Step 1

Factor $2$ out of $28 r^{2}$ .

$2 (14 r^{2}) - 20 r - 30$

Step 2

Factor $2$ out of $- 20 r$ .

$2 (14 r^{2}) + 2 (- 10 r) - 30$

Step 3

Factor $2$ out of $- 30$ .

$2 (14 r^{2}) + 2 (- 10 r) + 2 (- 15)$

Step 4

Factor $2$ out of $2 (14 r^{2}) + 2 (- 10 r)$ .

$2 (14 r^{2} - 10 r) + 2 (- 15)$

Step 5

Factor $2$ out of $2 (14 r^{2} - 10 r) + 2 (- 15)$ .

$2 (14 r^{2} - 10 r - 15)$