Factor -7x^6y^5-20x^2yz^3

$- 7 x^{6} y^{5} - 20 x^{2} y z^{3}$

Factor $- x^{2} y$ out of $- 7 x^{6} y^{5}$ .

$- x^{2} y (7 x^{4} y^{4}) - 20 x^{2} y z^{3}$

Factor $- x^{2} y$ out of $- 20 x^{2} y z^{3}$ .

$- x^{2} y (7 x^{4} y^{4}) - x^{2} y (20 z^{3})$

Factor $- x^{2} y$ out of $- x^{2} y (7 x^{4} y^{4}) - x^{2} y (20 z^{3})$ .

$- x^{2} y (7 x^{4} y^{4} + 20 z^{3})$