document.write( "Question 71321: factor x^2-3x-18 \n" ); document.write( "
Algebra.Com's Answer #51025 by galactus(183)\"\" \"About 
You can put this solution on YOUR website!
Find two numbers when added equal -3 and when multiplied equal -18\r
\n" ); document.write( "\n" ); document.write( "\"a%2Bb=-3\"
\n" ); document.write( "\"ab=-18\"\r
\n" ); document.write( "\n" ); document.write( "Solving we find -6 and 3. (-6)(3)=-18 and -6+3=-3.\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2-6x%2B3x-18=0\"\r
\n" ); document.write( "\n" ); document.write( "Group:\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2-6x%29%2B%283x-18%29\"\r
\n" ); document.write( "\n" ); document.write( "Factor out a common factor:\r
\n" ); document.write( "\n" ); document.write( "\"x%28x-6%29%2B3%28x-6%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x-6%29%28x%2B3%29\"\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );