document.write( "Question 156718: 2x^2+8x+15=0 \n" ); document.write( "

Algebra.Com's Answer #115554 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"2x%5E2+%2B+8x+%2B+15+=+0\"$
\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( "where $\"a+=+2\"$
\n" ); document.write( " $\"b+=+8\"$
\n" ); document.write( " $\"c+=+15\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+8%5E2-4%2A2%2A15+%29%29%2F%282%2A2%29+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+64+-+120+%29%29%2F4+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+-56+%29%29%2F4+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+2%2Asqrt%2814%29i%29%2F4+\"$
\n" ); document.write( " $\"x+=+-2+%2B+%28sqrt%2814%29i+%2F+2%29+\"$ and
\n" ); document.write( " $\"x+=+-2+-+%28sqrt%2814%29i+%2F+2%29+\"$
\n" ); document.write( "I checked one of the answers, and it appeared to
\n" ); document.write( "check OK \n" ); document.write( "

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