document.write( "Question 227965: $\"+x-9sqrt%28x%29%2B20=0+\"$ \n" ); document.write( "

Algebra.Com's Answer #169359 by Earlsdon(6294) $\"\"$ $\"About$

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Solve for x?
\n" ); document.write( " $\"x-9sqrt%28x%29%2B20+=+0\"$ Add $\"9sqrt%28x%29\"$ to both sides.
\n" ); document.write( " $\"x%2B20+=+9sqrt%28x%29\"$ Now square both sides.
\n" ); document.write( " $\"x%5E2%2B40x%2B400+=+81x\"$ Subtract $\"81x\"$ from both sides.
\n" ); document.write( " $\"x%5E2-41x%2B400+=+0\"$ Factor the trinomial.
\n" ); document.write( " $\"%28x-25%29%28x-16%29+=+0\"$ so...
\n" ); document.write( " $\"x+=+25\"$ or $\"x+=+16\"$ \n" ); document.write( "

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