Answer:
Step-by-step explanation:
(2ab^2 + 3c^2) (2ab^2 + 3c^2) = 4a^2b^4 + 6ab^2c^2 + 6ab^2c^2 + 9c^4
= 4a^2b^4 + 12ab^2c^2 + 9c^4
