document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=870278>Question 870278</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the factoring to solve the quadratic equation. Check by substitution or by using a graphing utility.\r<BR>\n" );
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document.write( "5x^2 =8x+21 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #524779 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=524779\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5x^2 =8x+21\r<BR>\n" );
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document.write( "5x^2 -8x-21=0\r<BR>\n" );
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document.write( "5x^2-15x+7x-21=0\r<BR>\n" );
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document.write( "5x(x-3)+7(x-3)=0\r<BR>\n" );
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document.write( "(x-3)(5x+7)=0<BR>\n" );
document.write( "x=3 OR x=-7/5\r<BR>\n" );
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document.write( "5*3^2=45<BR>\n" );
document.write( "8*3+21=45 </SPAN>\n" );
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