document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=53340>Question 53340</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0340888512/algebrahomeworkh>MEI structured mathematics A2 Pure mathematics c3/c4</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=x%2A%289-2%2Ax%5E2%29%5E0.5 ALIGN=MIDDLE  ALT=\"y=x%2A%289-2%2Ax%5E2%29%5E0.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " if y= 0<BR>\n" );
document.write( "and x=a\r<BR>\n" );
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document.write( "Find the value of a giving your answer as a multiple of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%5Eo.5 ALIGN=MIDDLE  ALT=\"2%5Eo.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "the answer it gives is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A2%5E0.5%29%2F2 ALIGN=MIDDLE  ALT=\"%283%2A2%5E0.5%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "i keep trying this problem but cant get anywhere near the answer it gives, and cant see where im going wrong. \r<BR>\n" );
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document.write( "i keep getting <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%5Eo.5%2F3 ALIGN=MIDDLE  ALT=\"2%5Eo.5%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F2%5E0.5 ALIGN=MIDDLE  ALT=\"3%2F2%5E0.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "can you help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #35595 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=35595\">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=y+=+x%289-2x%5E2%29%5E%280.5%29 ALIGN=MIDDLE  ALT=\"y+=+x%289-2x%5E2%29%5E%280.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > First, square both sides of the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5E2+=+x%5E2%289-2x%5E2%29 ALIGN=MIDDLE  ALT=\"y%5E2+=+x%5E2%289-2x%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now substitute y = 0 and x = a.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0+=+a%5E2%289-a%5E2%29 ALIGN=MIDDLE  ALT=\"0+=+a%5E2%289-a%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Apply the zero product principle.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2+=+0 ALIGN=MIDDLE  ALT=\"a%5E2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and/or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9-2a%5E2+=+0 ALIGN=MIDDLE  ALT=\"9-2a%5E2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9-2a%5E2+=+0 ALIGN=MIDDLE  ALT=\"9-2a%5E2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 9 from both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2a%5E2+=+-9 ALIGN=MIDDLE  ALT=\"-2a%5E2+=+-9\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by -2.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2+=+9%2F2 ALIGN=MIDDLE  ALT=\"a%5E2+=+9%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Take the square root of both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+3%2F%282%29%5E%280.5%29 ALIGN=MIDDLE  ALT=\"a+=+3%2F%282%29%5E%280.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Finally, multiply numerator and denominator by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%5E%280.5%29 ALIGN=MIDDLE  ALT=\"2%5E%280.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+%283%2A2%5E%280.5%29%29%2F2 ALIGN=MIDDLE  ALT=\"a+=+%283%2A2%5E%280.5%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );