document.write( "Question 931109: x^2+3x-88=0 solve \n" ); document.write( "
Algebra.Com's Answer #565468 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "x2+3x-88 = 0\r\n" );
document.write( "\r\n" );
document.write( "Since the sign of 88 is negative, think of two\r\n" );
document.write( "integers that have product 88 and difference the\r\n" );
document.write( "same as the coefficient of the x-term, which is 3.\r\n" );
document.write( "Two such integers are +11 and -8.  So we factor\r\n" );
document.write( "\r\n" );
document.write( "        (x+11)(x-8) = 0\r\n" );
document.write( "\r\n" );
document.write( "Then we use the zero-factor property:\r\n" );
document.write( "\r\n" );
document.write( "x+11 = 0            x-8 = 0\r\n" );
document.write( "   x = -11            x = 5 \r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );