SOLUTION: What are the solutions of (3x)2 - 318 = 45?

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Question 872976: What are the solutions of (3x)2 - 318 = 45?
Answer by Alan3354(69443) About Me  (Show Source):
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What are the solutions of (3x)2 - 318 = 45?
9x%5E2+=+363
x%5E2+=+363%2F9
x+=+11sqrt%283%29%2F3
x+=+-11sqrt%283%29%2F3