(3a + 5)^3 = ___ + 135a^2 + _____ + 25
3ab^2
3a^2 b
225a
(a + b)^3 = a^3 + ____ + ____ +b^2
(2x - y)^3 = 8x^3 -____ + 6xy^2 - ____
(x + 5)* _____ = x^2 - 25
(x+5)
y^3
9a^3
12x^2 y