SOLUTION: {{{ x-9sqrt(x)+20=0 }}}

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Question 227965: +x-9sqrt%28x%29%2B20=0+
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for x?
x-9sqrt%28x%29%2B20+=+0 Add 9sqrt%28x%29 to both sides.
x%2B20+=+9sqrt%28x%29 Now square both sides.
x%5E2%2B40x%2B400+=+81x Subtract 81x from both sides.
x%5E2-41x%2B400+=+0 Factor the trinomial.
%28x-25%29%28x-16%29+=+0 so...
x+=+25 or x+=+16