Factor 7x^3y+21xy^2

$7 x^{3} y + 21 x y^{2}$

Step 1

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

$7 x y (x^{2}) + 21 x y^{2}$

Step 2

Factor $7 x y$ out of $21 x y^{2}$ .

$7 x y (x^{2}) + 7 x y (3 y)$

Step 3

Factor $7 x y$ out of $7 x y (x^{2}) + 7 x y (3 y)$ .

$7 x y (x^{2} + 3 y)$