SOLUTION: x squared plus 3 radical 3 squared equal to 6 squared

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Question 207489: x squared plus 3 radical 3 squared equal to 6 squared
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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x squared plus 3 radical 3 squared equal to 6 squared
Assume it's
x^2 + 3sqrt%283%5E2%29 = 6^2
The square root of a square
x^2 + 3(3) = 36
:
x^2 + 9 = 36
:
x^2 = 36 - 9
:
x^2 = 27
x = sqrt%2827%29
x = sqrt%289%2A3%29
x = 3%2Asqrt%283%29