Factor 18q^3r^4s-12qr^2

$18 q^{3} r^{4} s - 12 q r^{2}$

Factor $6 q r^{2}$ out of $18 q^{3} r^{4} s$ .

$6 q r^{2} (3 q^{2} r^{2} s) - 12 q r^{2}$

Factor $6 q r^{2}$ out of $- 12 q r^{2}$ .

$6 q r^{2} (3 q^{2} r^{2} s) + 6 q r^{2} (- 2)$

Factor $6 q r^{2}$ out of $6 q r^{2} (3 q^{2} r^{2} s) + 6 q r^{2} (- 2)$ .

$6 q r^{2} (3 q^{2} r^{2} s - 2)$