SOLUTION: (3+2 sqrt(5))^2
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Question 1060398
:
(3+2 sqrt(5))^2
Answer by
Alan3354(69443)
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(3+2 sqrt(5))^2
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= (3+2sqrt(5))*(3+2sqrt(5))
= 3*(3+2sqrt(5)) + 2sqrt(5)*(3+2sqrt(5))
= 9 + 6sqrt(5) + 6sqrt(5) + 4*5
= 29 + 12sqrt(5)
