document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=238008>Question 238008</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you help me<BR>\n" );
document.write( "solve by factoring and using the principle of zero products\r<BR>\n" );
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document.write( "x^2+4x-77=0 </SPAN>\n" );
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document.write( "x^2+4x-77=0<BR>\n" );
document.write( "product of two numbers we get 77<BR>\n" );
document.write( "and adding  or subtracting we get 4<BR>\n" );
document.write( "those numbers are 11 and 7<BR>\n" );
document.write( "their product=11*7=77<BR>\n" );
document.write( "subtracting those numbers=11-7=4<BR>\n" );
document.write( "above equation can be written as<BR>\n" );
document.write( "x^2+11x-7x-77=0<BR>\n" );
document.write( "here 4 terms are there ,in 1 and 2 terms  x is common<BR>\n" );
document.write( "and 3 and 4 terms 7 is common<BR>\n" );
document.write( "x(x+11)-7(x+11)=0<BR>\n" );
document.write( "now x+11 is common term<BR>\n" );
document.write( "(x+11)(x-7)=0<BR>\n" );
document.write( "x+11=0<BR>\n" );
document.write( "x=-11<BR>\n" );
document.write( "x-7=0<BR>\n" );
document.write( "x=7<BR>\n" );
document.write( "the roots are 7 and -11<BR>\n" );
document.write( " </SPAN>\n" );
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