document.write( "Question 368281: solve the exponential equation:\r
\n" ); document.write( "\n" ); document.write( "3(x2+5x) = 1/81 \n" ); document.write( "

Algebra.Com's Answer #262493 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"3%28x%5E2%2B5x%29+=+1%2F81\"$
\n" ); document.write( " $\"243%28x%5E2%2B5x%29+=+1\"$
\n" ); document.write( " $\"243x%5E2%2B1215x-1=0\"$
\n" ); document.write( "Use the quadratic formula,
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"x+=+%28-1215+%2B-+sqrt%28+1215%5E2-4%2A243%2A%28-1%29+%29%29%2F%282%2A243%29+\"$
\n" ); document.write( " $\"x+=+%28-1215+%2B-+sqrt%28+1476225%2B972+%29%29%2F%28486%29+\"$
\n" ); document.write( " $\"x+=+%28-1215+%2B-+sqrt%28+1477197+%29%29%2F%28486%29+\"$
\n" ); document.write( " $\"x+=+%28-1215+%2B-+9%2Asqrt%2818237++%29%29%2F%28486%29+\"$
\n" ); document.write( " $\"highlight%28x+=+%28-135+%2B-+sqrt%2818237++%29%29%2F%2854%29%29+\"$ \n" ); document.write( "

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