document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1022159>Question 1022159</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sum of square of two number is 80.   One number is twice the other number. .find the number.  Please help me..I need the answer 4. Please answer with full steps. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #637896 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=637896\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write the description symbolically:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28x%3Cy%2Cx%5E2%2By%5E2=80%2C2x=y%29 ALIGN=MIDDLE  ALT=\"system%28x%3Cy%2Cx%5E2%2By%5E2=80%2C2x=y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You solve that system?  A simple substitution is the start:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B%282x%29%5E2=80 ALIGN=MIDDLE  ALT=\"x%5E2%2B%282x%29%5E2=80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Do you know what to do with this?\r<BR>\n" );
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document.write( "--<BR>\n" );
document.write( "You might have just made a small arithmetic mistake.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B%282x%29%5E2=80 ALIGN=MIDDLE  ALT=\"x%5E2%2B%282x%29%5E2=80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B4x%5E2=80 ALIGN=MIDDLE  ALT=\"x%5E2%2B4x%5E2=80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x%5E2=80 ALIGN=MIDDLE  ALT=\"5x%5E2=80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=16 ALIGN=MIDDLE  ALT=\"x%5E2=16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-4 ALIGN=MIDDLE  ALT=\"x=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >  or  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=4 ALIGN=MIDDLE  ALT=\"x=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and y=-8  or y=8, correspondingly. </SPAN>\n" );
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