document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=579844>Question 579844</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the value of x if the triangle is 15 square yards? <BR>\n" );
document.write( "Base of the triangle is x-5<BR>\n" );
document.write( "Height of the triangle is 2x + 1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #371080 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=371080\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area of triangle = 1/2 * base * height\r<BR>\n" );
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document.write( "15= 1/2 * (x-5)(2x+1)\r<BR>\n" );
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document.write( "multiply by 2<BR>\n" );
document.write( "30 = (x-5)(2x+1)\r<BR>\n" );
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document.write( "30= x(2x+1)-5(2x+1)\r<BR>\n" );
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document.write( "30=2x^2+x-10x-5\r<BR>\n" );
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document.write( "30=2x^2-9x-5\r<BR>\n" );
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document.write( "add -30<BR>\n" );
document.write( "0= 2x^2-9x-35\r<BR>\n" );
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document.write( "2x^2-9x-35=0\r<BR>\n" );
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document.write( "2x^2-14x+5x-35=0\r<BR>\n" );
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document.write( "2x(x-7)+5(x-7)=0\r<BR>\n" );
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document.write( "(x-7)(x+5)=0\r<BR>\n" );
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document.write( "x=7 OR -5\r<BR>\n" );
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document.write( "x=7 since the lengths cannot be negative. </SPAN>\n" );
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