SOLUTION: 〖(3√5)〗^2 My brain just froze... how do I solve this and get an answer of 45??

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Question 754911: 〖(3√5)〗^2
My brain just froze... how do I solve this and get an answer of 45??
Found 2 solutions by sachi, Alan3354:
Answer by sachi(548) About Me  (Show Source):
You can put this solution on YOUR website!
(3 sq rt 53)^2=35^2*(sqrt5)^2=9*5=45
as (sqrt5)^2=(sqrt5)*(sqrt5)=5

Answer by Alan3354(69443) About Me  (Show Source):