document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119176>Question 119176</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am struggling with these two problems:\r<BR>\n" );
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document.write( "a) Which of the following is not an expression? 4r = 5; 15r + 18; 24r - 12; 18r divided by 9\r<BR>\n" );
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document.write( "b) Evaluate the expression if x=3 and y = -1<BR>\n" );
document.write( " 6x (exponent 2) + 22xy + 20y(exponent 2)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87281 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=87281\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)\r<BR>\n" );
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document.write( "Anything with an equal sign is an <b>equation</b> which is not an expression. So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4r=5 ALIGN=MIDDLE  ALT=\"4r=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > is not an expression\r<BR>\n" );
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document.write( "b)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%5E2%2B+22xy+%2B+20y%5E2 ALIGN=MIDDLE  ALT=\"6x%5E2%2B+22xy+%2B+20y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given expression\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%283%29%5E2%2B+22%283%29%28-1%29+%2B+20%28-1%29%5E2 ALIGN=MIDDLE  ALT=\"6%283%29%5E2%2B+22%283%29%28-1%29+%2B+20%28-1%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=3 ALIGN=MIDDLE  ALT=\"x=3\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-1 ALIGN=MIDDLE  ALT=\"y=-1\"   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=6%289%29%2B+22%283%29%28-1%29+%2B+20%28-1%29%5E2 ALIGN=MIDDLE  ALT=\"6%289%29%2B+22%283%29%28-1%29+%2B+20%28-1%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Square 3 to get 9\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%289%29%2B+22%283%29%28-1%29+%2B+20%281%29 ALIGN=MIDDLE  ALT=\"6%289%29%2B+22%283%29%28-1%29+%2B+20%281%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Square -1 to get 1\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=54-66+%2B+20 ALIGN=MIDDLE  ALT=\"54-66+%2B+20\"   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=8 ALIGN=MIDDLE  ALT=\"8\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms\r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%5E2%2B+22xy+%2B+20y%5E2=8 ALIGN=MIDDLE  ALT=\"6x%5E2%2B+22xy+%2B+20y%5E2=8\"   DISABLED_style= \"max-width:90%; height:auto;\" > when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=3 ALIGN=MIDDLE  ALT=\"x=3\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-1 ALIGN=MIDDLE  ALT=\"y=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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