document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=330143>Question 330143</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm on college and math is not my subject. I have tried to work these problems, but I just can't get them. Please help me solve the Quadratic equation x2-2x-13=0 and 4x2-4x+3=0  Thanks so much. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #236600 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=236600\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x2-2x-13=0 <BR>\n" );
document.write( "compare it with the general equation<BR>\n" );
document.write( "ax^2 +bx +c<BR>\n" );
document.write( "a=1, b=-2, c=-13<BR>\n" );
document.write( "x1,x2 the roots of the equation are <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1+=+%28-b+%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x1+=+%28-b+%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "plug the values of a,b,c in the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28-%28-2%29%2Bsqrt%28%28-2%29%5E2-4%2A1%2A%28-13%29%29%29%2F%282%2A1%29 ALIGN=MIDDLE  ALT=\"x1=%28-%28-2%29%2Bsqrt%28%28-2%29%5E2-4%2A1%2A%28-13%29%29%29%2F%282%2A1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%2B2%2Bsqrt%284%2B52%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x1=%2B2%2Bsqrt%284%2B52%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=+2%2Bsqrt%2856%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x1=+2%2Bsqrt%2856%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%282%2B2%2Asqrt%2814%29%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x1=%282%2B2%2Asqrt%2814%29%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%282%2A%281%2Bsqrt%2814%29%29%29%2F2 ALIGN=MIDDLE  ALT=\"x1=%282%2A%281%2Bsqrt%2814%29%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%281%2Bsqrt14%29 ALIGN=MIDDLE  ALT=\"x1=%281%2Bsqrt14%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x2=+2-sqrt%2856%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x2=+2-sqrt%2856%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x2=%282-2%2Asqrt%2814%29%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x2=%282-2%2Asqrt%2814%29%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x2=%282%2A%281-sqrt%2814%29%29%29%2F2 ALIGN=MIDDLE  ALT=\"x2=%282%2A%281-sqrt%2814%29%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x2=%281-sqrt14%29 ALIGN=MIDDLE  ALT=\"x2=%281-sqrt14%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "..<BR>\n" );
document.write( "and 4x2-4x+3=0  <BR>\n" );
document.write( "compare it with the general equation<BR>\n" );
document.write( "ax^2 +bx +c<BR>\n" );
document.write( "a=4, b=-4, c=3<BR>\n" );
document.write( "x1,x2 the roots of the equation are <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1+=+%28-b+%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x1+=+%28-b+%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "plug the values of a,b,c in the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28-%28-4%29%2Bsqrt%28%28-4%29%5E2-4%2A4%2A%283%29%29%29%2F%282%2A4%29 ALIGN=MIDDLE  ALT=\"x1=%28-%28-4%29%2Bsqrt%28%28-4%29%5E2-4%2A4%2A%283%29%29%29%2F%282%2A4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28%2B4%2Bsqrt%284-48%29%29%2F%288%29 ALIGN=MIDDLE  ALT=\"x1=%28%2B4%2Bsqrt%284-48%29%29%2F%288%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%282%2Bsqrt%28-11%29%29%2F4 ALIGN=MIDDLE  ALT=\"x1=%282%2Bsqrt%28-11%29%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%281%2F2%29%2Bsqrt%28-11%29%2F4 ALIGN=MIDDLE  ALT=\"x1=%281%2F2%29%2Bsqrt%28-11%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x2=%281%2F2%29-sqrt%28-11%29%2F4 ALIGN=MIDDLE  ALT=\"x2=%281%2F2%29-sqrt%28-11%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Thanks so much. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );