SOLUTION: please help me find the real solution of this equation {{{ x=3*sqrt(x)}}}

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Question 366747: please help me find the real solution of this equation +x=3%2Asqrt%28x%29
Found 2 solutions by solver91311, robertb:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




Square both sides:



Multiply both sides by



John

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Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
x+=+3%2Asqrt%28x%29,
x-3%2Asqrt%28x%29+=+0,
sqrt%28x%29%28sqrt%28x%29+-+3%29+=+0,hence
sqrt%28x%29+=+0, or sqrt%28x%29+-+3+=+0.
sqrt%28x%29+=+0 means x = 0, after squaring both sides, and
sqrt%28x%29-3+=+0 means x = 9, after transposition and squaring both sides. Since x=0, or x =9 satisfy the original equation, they are the final answers.