document.write( "Question 607144: how do i solve by factoring 2x2-5x-12=0 ? \n" ); document.write( "

Algebra.Com's Answer #382443 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+2x%5E2-5x-12=0+\"$
\n" ); document.write( "You can use 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( " $\"+a+=+2+\"$
\n" ); document.write( " $\"+b+=+-5+\"$
\n" ); document.write( " $\"+c+=+-12+\"$
\n" ); document.write( " $\"+x+=+%28-%28-5%29+%2B-+sqrt%28+%28-5%29%5E2+-+4%2A2%2A%28-12%29+%29%29+%2F+%282%2A2%29+\"$
\n" ); document.write( " $\"+x+=+%28+5+%2B-+sqrt%28+25+%2B+96+%29%29+%2F+4+\"$
\n" ); document.write( " $\"+x+=+%28+5+%2B-+sqrt%28+121+%29%29+%2F+4+\"$
\n" ); document.write( " $\"+x+=+%28+5+%2B+11%29+%2F+4+\"$
\n" ); document.write( " $\"+x+=+16%2F4+\"$
\n" ); document.write( " $\"+x+=+4+\"$
\n" ); document.write( "(1) $\"+x+-+4+=+0+\"$
\n" ); document.write( "and also,
\n" ); document.write( " $\"+x+=+%28+5+-+11%29+%2F+4+\"$
\n" ); document.write( " $\"+x+=+-6%2F4+\"$
\n" ); document.write( " $\"+x+=+-3%2F2+\"$
\n" ); document.write( " $\"+x+%2B+3%2F2+=+0+\"$
\n" ); document.write( "(2) $\"+2x+%2B+3+=+0+\"$
\n" ); document.write( "------------------
\n" ); document.write( "Multiplying (1) and (2),
\n" ); document.write( " $\"+%28+x+-+4+%29%2A%28+2x+%2B+3+%29+=+0+\"$ \r
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