document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=835344>Question 835344</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A room has an area of 418 square feet. One dimension is 3 feet more than the other. Find the dimensions of the room. <BR>\n" );
document.write( "So far i have... <BR>\n" );
document.write( "A= LxW & A= 418<BR>\n" );
document.write( "so, LxW= 418<BR>\n" );
document.write( "L(L+3)= 418<BR>\n" );
document.write( "L^2+3L= 418<BR>\n" );
document.write( "from this point I'm not sure what to do because I can't divide either of the variables from the left side by 418 to solve for L<BR>\n" );
document.write( "hope you can help me :)   -Ashlyn  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #503451 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=503451\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The discussion you give seems to show interest on just the floor area and dimensions.\r<BR>\n" );
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document.write( "A=L*W and you are given A=418.<BR>\n" );
document.write( "Not given which is which, one dimension is the other +3.  We could choose W=L+3 but no harm either way.\r<BR>\n" );
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document.write( "You now just have:<BR>\n" );
document.write( "L*W=418 and W=L+3<BR>\n" );
document.write( "You have enough to do a substitution to obtain an equation in one single variable.   See how?   You started and then became stuck.  No reason for being stuck.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2AW=418 ALIGN=MIDDLE  ALT=\"L%2AW=418\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2A%28L%2B3%29=418 ALIGN=MIDDLE  ALT=\"L%2A%28L%2B3%29=418\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%5E2%2B3L=418 ALIGN=MIDDLE  ALT=\"L%5E2%2B3L=418\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%5E2%2B3L-418=0 ALIGN=MIDDLE  ALT=\"L%5E2%2B3L-418=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > ----- Try to factor this if you want, but more comfortable just using general solution to quadratic formula.  Not sure which course you're in.  If intermediate or higher, then you know what to do.  If Intro or Elementary, then you would probably be expected to factor.<BR>\n" );
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document.write( "FACTOR?<BR>\n" );
document.write( "418=2*209=2*11*19----- maybe we have a way to factor.<BR>\n" );
document.write( "22 and 19?<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%28L%2B22%29%28L-19%29=0%29 ALIGN=MIDDLE  ALT=\"highlight%28%28L%2B22%29%28L-19%29=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "TWO SOLUTIONS.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28cross%28L=+-22%29%29 ALIGN=MIDDLE  ALT=\"highlight%28cross%28L=+-22%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > OR  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28L=19%29 ALIGN=MIDDLE  ALT=\"highlight%28L=19%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "So the length, L can be 19 feet, and therefore W for width can be 19+3=22 feet.<BR>\n" );
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document.write( "SUMMARY: Length 19 feet, Width 22 feet<BR>\n" );
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