SOLUTION: solve the equations. 4x2=81

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Question 361368: solve the equations.
4x2=81
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
4x%5E2=81
x%5E2=81%2F4
x+=+sqrt%2881%2F4%29
x+=+9%2F2+ that's plus or minus the value