document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=778595>Question 778595</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi. My brain is being fried by this equation. I have been trying to solve it for three hours. The textbook says the answer is the square root of 20, but I am still unable to work it out. Using the Pythagorean Theorem, calculating the distance between A and B.\r<BR>\n" );
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document.write( "A's coordinates are: (Xa: a + 1. Ya: 2a + 3).\r<BR>\n" );
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document.write( "B's coordinates are: (Xb: a - 1. Yb: 2a - 1).\r<BR>\n" );
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document.write( "           The steps to the textbook's answer elude me. Any help would be appreciated.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #474806 by </B><A HREF=/tutors/aboutme.mpl?userid=psbhowmick><B>psbhowmick(878)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=psbhowmick><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=psbhowmick><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=474806\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The distance is given be<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+sqrt%28%28Xa-Xb%29%5E2%2B%28Ya-Yb%29%5E2%29 ALIGN=MIDDLE  ALT=\"d+=+sqrt%28%28Xa-Xb%29%5E2%2B%28Ya-Yb%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+sqrt%28%28%28a%2B1%29-%28a-1%29%29%5E2%2B%28%282a%2B3%29-%282a-1%29%29%5E2%29 ALIGN=MIDDLE  ALT=\"d+=+sqrt%28%28%28a%2B1%29-%28a-1%29%29%5E2%2B%28%282a%2B3%29-%282a-1%29%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+sqrt%282%5E2%2B4%5E2%29 ALIGN=MIDDLE  ALT=\"d+=+sqrt%282%5E2%2B4%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+sqrt%284%2B16%29 ALIGN=MIDDLE  ALT=\"d+=+sqrt%284%2B16%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+sqrt%2820%29 ALIGN=MIDDLE  ALT=\"d+=+sqrt%2820%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+2sqrt%285%29 ALIGN=MIDDLE  ALT=\"d+=+2sqrt%285%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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