SOLUTION: Please help solve step by step: (2x+5)^2 if x=6 and 5x^2-2y^2 if x=3 and y=6

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Question 350784: Please help solve step by step:
(2x+5)^2 if x=6
and

5x^2-2y^2 if x=3 and y=6
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
I'll help you with the first one, let's see if you can do the second problem.
(2x+5)^2 if x=6
Rewritten as:
(12+5)^2
Add in the parenthesis first:
17^2
This gives us:
289
Make sense?
RJ
www.math-unlock.com