document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=829989>Question 829989</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the equation by factoring\r<BR>\n" );
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document.write( "8x^2 +10x-7 = 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500324 by </B><A HREF=/tutors/aboutme.mpl?userid=LinnW><B>LinnW(1048)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=LinnW><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=LinnW><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=500324\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8x^2 +10x-7 = 0<BR>\n" );
document.write( "product of outer coefficients = -56<BR>\n" );
document.write( "we want two numbers whose sum is 10 and product is -56<BR>\n" );
document.write( "(-4)(14) = -56<BR>\n" );
document.write( "8x^2 +14x -4x -7 = 0<BR>\n" );
document.write( "2x(4x + 7) -1(4x + 7) = 0<BR>\n" );
document.write( "(2x - 1)(4x + 7) = 0<BR>\n" );
document.write( "2x - 1 = 0 ; 2x = 1 ; x = 1/2<BR>\n" );
document.write( "4x + 7 = 0 ; 4x = -7 ; x = -7/4 </SPAN>\n" );
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