document.write( "Question 308739: Solve algebraically and check your potential solutions: sqrt(x+2)-x =0 \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #220762 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Solve algebraically and check your potential solutions:
\n" ); document.write( "sqrt(x+2)-x =0
\n" ); document.write( "----
\n" ); document.write( "sqrt(x+2) = x
\n" ); document.write( "---
\n" ); document.write( "x+2 = x^2
\n" ); document.write( "---
\n" ); document.write( "x^2-x-2 = 0
\n" ); document.write( "---
\n" ); document.write( "Factor:
\n" ); document.write( "(x-2)(x+1) = 0
\n" ); document.write( "x = 2 or x = -1
\n" ); document.write( "------------------
\n" ); document.write( "Checking:
\n" ); document.write( "Can x = 2?
\n" ); document.write( "sqrt(2+2)-2 = 0
\n" ); document.write( "2-2 = 0
\n" ); document.write( "Good
\n" ); document.write( "--------------------
\n" ); document.write( "Can x = -1?
\n" ); document.write( "sqrt(-1+2)-(-1) = 0
\n" ); document.write( "sqrt(1)+1 = 0
\n" ); document.write( "2 = 0
\n" ); document.write( "Not Good
\n" ); document.write( "====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "====================
\n" ); document.write( " \n" ); document.write( "
\n" );