Question:
(2xy + 3y2) (3y2 − 2)
Solution:
To multiply, we will use distributive law as follows:
(2xy + 3y2) (3y2 − 2)
$=2 x y\left(3 y^{2}-2\right)+3 y^{2}\left(3 y^{2}-2\right)$
$=6 x y^{3}-4 x y+9 y^{4}-6 y^{2}$
$=9 y^{4}+6 x y^{3}-6 y^{2}-4 x y$
Thus, the answer is $9 y^{4}+6 x y^{3}-6 y^{2}-4 x y$.