Basic Math Examples

$72 m n - 72 m + 63 n + 63$

Step 1

Factor $9$ out of $72 m n$ .

$9 (8 m n) - 72 m + 63 n + 63$

Step 2

Factor $9$ out of $- 72 m$ .

$9 (8 m n) + 9 (- 8 m) + 63 n + 63$

Step 3

Factor $9$ out of $63 n$ .

$9 (8 m n) + 9 (- 8 m) + 9 (7 n) + 63$

Step 4

Factor $9$ out of $63$ .

$9 (8 m n) + 9 (- 8 m) + 9 (7 n) + 9 (7)$

Step 5

Factor $9$ out of $9 (8 m n) + 9 (- 8 m)$ .

$9 (8 m n - 8 m) + 9 (7 n) + 9 (7)$

Step 6

Factor $9$ out of $9 (8 m n - 8 m) + 9 (7 n)$ .

$9 (8 m n - 8 m + 7 n) + 9 (7)$

Step 7

Factor $9$ out of $9 (8 m n - 8 m + 7 n) + 9 (7)$ .

$9 (8 m n - 8 m + 7 n + 7)$