SOLUTION: I need help simplifing these expressions (r+3)^2 and (2m-4)(m^2 + 2m + 4)

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Question 883268: I need help simplifing these expressions
(r+3)^2
and (2m-4)(m^2 + 2m + 4)
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(r+3)(r+3)=
r^2+3r+3r+9=
r^2+6r+9
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(2m-4)(m^2+2m+4)=
2m^3+4m^2+8m-4m^2-8m-16=
2m^3-16