Factor -13y^2z^3-7xy^3z^2

$- 13 y^{2} z^{3} - 7 x y^{3} z^{2}$

Reorder $- 13 y^{2} z^{3}$ and $- 7 x y^{3} z^{2}$ .

$- 7 x y^{3} z^{2} - 13 y^{2} z^{3}$

Factor $- y^{2} z^{2}$ out of $- 7 x y^{3} z^{2}$ .

$- y^{2} z^{2} (7 x y) - 13 y^{2} z^{3}$

Factor $- y^{2} z^{2}$ out of $- 13 y^{2} z^{3}$ .

$- y^{2} z^{2} (7 x y) - y^{2} z^{2} (13 z)$

Factor $- y^{2} z^{2}$ out of $- y^{2} z^{2} (7 x y) - y^{2} z^{2} (13 z)$ .

$- y^{2} z^{2} (7 x y + 13 z)$