SOLUTION: Please help me solve this equation: {{{ x - 2sqrt (x) = 3 }}}

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Question 644056: Please help me solve this equation:
+x+-+2sqrt+%28x%29+=+3+
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
+x+-+2sqrt+%28x%29+=+3+

-2sqrt+%28x%29+=+3-x+

2sqrt+%28x%29+=+x-3+

%282sqrt+%28x%29%29%5E2+=+%28x-3%29%5E2+

4x+=+%28x-3%29%5E2+

4x+=+x%5E2+-+6x+%2B+9+

0+=+x%5E2+-+6x+%2B+9+-+4x+

0+=+x%5E2+-+10x+%2B+9+

x%5E2+-+10x+%2B+9+=+0+

%28x-9%29%28x-1%29+=+0+

x-9=0 or x-1=0

x=9 or x=1

So the *possible* solutions are x=9 or x=1

Make sure you check them (I'll let you do this) to see if they are truly the solutions.