document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119571>Question 119571</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395977258/algebrahomeworkh>Algebra and Trigonometry Structure and Method Book 2</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28-r%2F5%29sqrt%28-20%2Fr%29 ALIGN=MIDDLE  ALT=\"sqrt%28-r%2F5%29sqrt%28-20%2Fr%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87605 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=87605\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28-r%2F5%29sqrt%28-20%2Fr%29 ALIGN=MIDDLE  ALT=\"sqrt%28-r%2F5%29sqrt%28-20%2Fr%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given expression. Note: since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%3C%3E0 ALIGN=MIDDLE  ALT=\"r%3C%3E0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and we cannot take the square root of a negative number, we must make the restriction <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%3C0 ALIGN=MIDDLE  ALT=\"r%3C0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28-r%2F5%29%28-20%2Fr%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28-r%2F5%29%28-20%2Fr%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine the square roots.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28-r%2F5%29%28-4%2A5%2Fr%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28-r%2F5%29%28-4%2A5%2Fr%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor -20 into <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-4%2A5 ALIGN=MIDDLE  ALT=\"-4%2A5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28-cross%28r%29%2Fcross%285%29%29%28-4%2Across%285%29%2Fcross%28r%29%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28-cross%28r%29%2Fcross%285%29%29%28-4%2Across%285%29%2Fcross%28r%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Cancel like terms\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28-1%29%28-4%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28-1%29%28-4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Simplify\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%284%29 ALIGN=MIDDLE  ALT=\"sqrt%284%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2 ALIGN=MIDDLE  ALT=\"2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Take the square root of 4 to get 2 </SPAN>\n" );
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