document.write( "Question 350138: x+5=√(9x+81) find x \n" ); document.write( "

Algebra.Com's Answer #250249 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Square both sides,
\n" ); document.write( " $\"%28x%2B5%29%5E2=9x%2B81\"$
\n" ); document.write( " $\"x%5E2%2B10x%2B25=9x%2B81\"$
\n" ); document.write( " $\"x%5E2%2Bx-56=0\"$
\n" ); document.write( " $\"%28x%2B8%29%28x-7%29=0\"$
\n" ); document.write( "Two solutions:
\n" ); document.write( " $\"x%2B8=0\"$
\n" ); document.write( " $\"highlight%28x=-8%29\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"x-7=0\"$
\n" ); document.write( " $\"highlight%28x=7%29\"$ \n" ); document.write( "

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