SOLUTION: please help with this problem that contains parentheses. please solve (5+4b)^2 thanks

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Question 188575: please help with this problem that contains parentheses. please solve

(5+4b)^2

thanks
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
(5+4b)^2 is the same as (5+4b)*(5+4b)
:
so using FOIL to multiply this out
:
5(5)+5(4b)+4b(5)+4b(4b)=
:
25%2B20b%2B20b%2B16b%5E2
:
16b%5E2%2B40b%2B25