Answer:
9 - 12y + 4y²
Explanation:
(3 - 2y)²
= (3 - 2y)(3 - 2y)
each term in the second factor is multiplied by each term in the irst factor, that is
3(3 - 2y) - 2y(3 - 2y) ← distribute parenthesis
= 9 - 6y - 6y + 4y² ← collect like terms
= 9 - 12y + 4y²