document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=773088>Question 773088</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hi \r<BR>\n" );
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document.write( "I have a question and I am unable to answer it so here goes:\r<BR>\n" );
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document.write( "Show that the area of this shape can be written as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5x%5E2+%2B+4x-+9+ ALIGN=MIDDLE  ALT=\"+5x%5E2+%2B+4x-+9+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now the shape is of a letter L  and all angles are 90 degrees\r<BR>\n" );
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document.write( "4 measurements are shown against the 4 x Sides:\r<BR>\n" );
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document.write( "LHS <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2x%5E2+%2B+3+ ALIGN=MIDDLE  ALT=\"+2x%5E2+%2B+3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Top <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2x%5E2+%2B+1+ ALIGN=MIDDLE  ALT=\"+2x%5E2+%2B+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Bottom <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3x+-+5+ ALIGN=MIDDLE  ALT=\"+3x+-+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "RHS Smaller side <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+%2B+2+ ALIGN=MIDDLE  ALT=\"+x+%2B+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Unsure how to work this out as the answer I get is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5x%5E2+-+9+ ALIGN=MIDDLE  ALT=\"+5x%5E2+-+9+\"   DISABLED_style= \"max-width:90%; height:auto;\" > I don't get the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4x+ ALIGN=MIDDLE  ALT=\"+4x+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "I'm I doing something wrong\r<BR>\n" );
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document.write( "Thanks\r<BR>\n" );
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document.write( "MJ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471307 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=471307\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This shape is like a rectangle which is missing an upper-right rectangle piece.  We can find some projected length distances to find the missing rectangle's width and height.\r<BR>\n" );
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document.write( "DRAW the figure so you see what my description is.<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u=%283x-5%29-%282x%5E2%2B1%29 ALIGN=MIDDLE  ALT=\"u=%283x-5%29-%282x%5E2%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  and let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=%282x%5E2%2B3%29-%28x%2B2%29 ALIGN=MIDDLE  ALT=\"v=%282x%5E2%2B3%29-%28x%2B2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The area of the missing rectangular piece is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u%2Av ALIGN=MIDDLE  ALT=\"u%2Av\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "First find actual u and v in their simplified form; then, find the area of u*v.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u=3x-5-2x%5E2-1=3x-2x%5E2-6 ALIGN=MIDDLE  ALT=\"u=3x-5-2x%5E2-1=3x-2x%5E2-6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=2x%5E2%2B3-x-2=2x%5E2-x%2B1 ALIGN=MIDDLE  ALT=\"v=2x%5E2%2B3-x-2=2x%5E2-x%2B1\"   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=highlight%28uv=%28-2x%5E2%2B3x-6%29%282x%5E2-x%2B1%29%29 ALIGN=MIDDLE  ALT=\"highlight%28uv=%28-2x%5E2%2B3x-6%29%282x%5E2-x%2B1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+%2B+uv+=+%282x%5E2%2B3%29%283x-5%29 ALIGN=MIDDLE  ALT=\"L+%2B+uv+=+%282x%5E2%2B3%29%283x-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and just the L by itself would be :<BR>\n" );
document.write( "The L=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%5E2%2B3%29%283x-5%29-uv ALIGN=MIDDLE  ALT=\"%282x%5E2%2B3%29%283x-5%29-uv\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28L=%282x%5E2%2B3%29%283x-5%29-%28-2x%5E2%2B3x-6%29%282x%5E2-x%2B1%29%29 ALIGN=MIDDLE  ALT=\"highlight%28L=%282x%5E2%2B3%29%283x-5%29-%28-2x%5E2%2B3x-6%29%282x%5E2-x%2B1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > square units<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "That should simplify to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%284x%5E4-2x%5E3-3x%5E2-9%29 ALIGN=MIDDLE  ALT=\"highlight%284x%5E4-2x%5E3-3x%5E2-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I just do not get what you report it should be. </SPAN>\n" );
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