document.write( "Question 311290: (x+3)^2+27x+60=0 \n" ); document.write( "

Algebra.Com's Answer #222625 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28x%2B3%29%5E2%2B27x%2B60=0\"$
\n" ); document.write( " $\"%28x%2B3%29%5E2%2B27%28x%2B3%29%2B60-81=0\"$
\n" ); document.write( " $\"%28x%2B3%29%5E2%2B27%28x%2B3%29-21=0\"$
\n" ); document.write( "Let $\"u=x%2B3\"$
\n" ); document.write( " $\"u%5E2%2B27u-21=0\"$
\n" ); document.write( "Use the quadratic formula,
\n" ); document.write( " $\"u+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"u+=+%28-27+%2B-+sqrt%28+27%5E2-4%2A1%2A%28-21%29+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"u+=+%28-27+%2B-+sqrt%28+729%2B84+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"u+=+%28-27+%2B-+sqrt%28+813+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x%2B3+=+%28-27+%2B-+sqrt%28+813+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%28-33+%2B-+sqrt%28+813+%29%29%2F%282%29+\"$ or approximately,
\n" ); document.write( " $\"x=-30.8\"$ and $\"x=-2.2\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"+graph%28+300%2C+300%2C+-45%2C+5%2C+-50%2C+50%2C+%28x%2B3%29%5E2%2B27x%2B60%29+\"$ \n" ); document.write( "

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