document.write( "Question 163592: Solve the quadratic equation
\n" ); document.write( "3(x-9)²=81 \n" ); document.write( "

Algebra.Com's Answer #120510 by checkley77(12844) $\"\"$ $\"About$

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3(x-9)²=81
\n" ); document.write( "3(x^2-18x+81)=81
\n" ); document.write( "3x^2-54x+243-81=0
\n" ); document.write( "3x^2-54x+162=0
\n" ); document.write( "3(x^2-18+54)=0
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "x=(18+-sqrt[-18^2-4*1*54])/2*1
\n" ); document.write( "x=(18+-sqrt[324-216])/2
\n" ); document.write( "x=(18+-sqrt108)/2
\n" ); document.write( "x=(18+-10.3923)/2
\n" ); document.write( "x=(18+10.3923)/2
\n" ); document.write( "x=28.3923/2
\n" ); document.write( "x=14.196 Answer.
\n" ); document.write( "x=(18-10.3923)/2
\n" ); document.write( "x=7.6608/2
\n" ); document.write( "x=3.804 Answer. \n" ); document.write( "

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