Simplify.

b(b-3)^2

Would I square the b-3 before I multiply it by the b or distribute and then square?Thanks

Here are the steps:

b(b-3)^2

Square b-3:
b^2 -6b + 9

Distribute b:
b(b^2 - 6b + 9)

b^3 - 6b^2 + 9b

And there you have it!