document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=75139>Question 75139</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLEASE HELP ME!!<BR>\n" );
document.write( "The area of a rectangle of length x is given by 3x^2 + 5x. Find the<BR>\n" );
document.write( "width of the rectangle. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #53961 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=53961\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since the area is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=L%2Aw ALIGN=MIDDLE  ALT=\"A=L%2Aw\"   DISABLED_style= \"max-width:90%; height:auto;\" > we can solve for w<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w=A%2FL ALIGN=MIDDLE  ALT=\"w=A%2FL\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now lets plug in our values<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w=%283x%5E2%2B5x%29%2Fx ALIGN=MIDDLE  ALT=\"w=%283x%5E2%2B5x%29%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=3x%5E2%2B5x ALIGN=MIDDLE  ALT=\"A=3x%5E2%2B5x\"   DISABLED_style= \"max-width:90%; height:auto;\" > and L=x<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w=3x%5E2%2Fx%2B5x%2Fx ALIGN=MIDDLE  ALT=\"w=3x%5E2%2Fx%2B5x%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >Break up the fraction into two fractions<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w=3x%5E%28cross%282%29%29%2Fcross%28x%29%2B5%2Across%28x%2Fx%29 ALIGN=MIDDLE  ALT=\"w=3x%5E%28cross%282%29%29%2Fcross%28x%29%2B5%2Across%28x%2Fx%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide like terms.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w=3x%2B5 ALIGN=MIDDLE  ALT=\"w=3x%2B5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So the width is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w=3x%2B5 ALIGN=MIDDLE  ALT=\"w=3x%2B5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<p><BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "If we multiply L and w we should get A<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=L%2Aw ALIGN=MIDDLE  ALT=\"A=L%2Aw\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=x%283x%2B5%29 ALIGN=MIDDLE  ALT=\"A=x%283x%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >Plug in values for w and L<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=3x%5E2%2B5x%29 ALIGN=MIDDLE  ALT=\"A=3x%5E2%2B5x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > So our answer works </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );