document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=81129>Question 81129</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Problem<BR>\n" );
document.write( "The length, width, and height of a box are x, 2x, and 3x-5 inches, respectively. Write a polynomial V(x) that represents its volume. Find V(3)<BR>\n" );
document.write( "Here it what I have.<BR>\n" );
document.write( "V= x^2 (x + 2)(3x - 5) <BR>\n" );
document.write( "= x^2 + 6x - 10<BR>\n" );
document.write( "If you put 3 in place of x the volume = 180<BR>\n" );
document.write( "I don't know if I am corret and would appreciate your input and help. Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #58186 by </B><A HREF=/tutors/aboutme.mpl?userid=tutor_paul><B>tutor_paul(519)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutor_paul><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/cgi-bin/show-face.mpl?user=tutor_paul><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=58186\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The volume of the box is length*width*height, so you did develop the correct expression for V(x). But you made a mistake simplifying the expression.<BR>\n" );
document.write( "------------------------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V%28x%29=%28x%5E2%29%28x%2B2%29%283x-5%29 ALIGN=MIDDLE  ALT=\"V%28x%29=%28x%5E2%29%28x%2B2%29%283x-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "At this point, just plug in 3 for x to find the volume:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V%283%29=%289%29%285%29%284%29 ALIGN=MIDDLE  ALT=\"V%283%29=%289%29%285%29%284%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28V%283%29=180%29 ALIGN=MIDDLE  ALT=\"highlight%28V%283%29=180%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >inches^3<BR>\n" );
document.write( "------------------------------------------<BR>\n" );
document.write( "Note: if you need to find a simplified expression for V(x) prior to finding V(3), just multiply the expression for V(x):<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V%28x%29=%28x%5E2%29%28x%2B2%29%283x-5%29 ALIGN=MIDDLE  ALT=\"V%28x%29=%28x%5E2%29%28x%2B2%29%283x-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=V%28x%29=x%5E2%283x%5E2%2Bx-10%29 ALIGN=MIDDLE  ALT=\"V%28x%29=x%5E2%283x%5E2%2Bx-10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28V%28x%29=3x%5E4%2Bx%5E3-10x%29 ALIGN=MIDDLE  ALT=\"highlight%28V%28x%29=3x%5E4%2Bx%5E3-10x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Plug in 3 for x to be sure you get the same answer as above.\r<BR>\n" );
document.write( "\n" );
document.write( "Good Luck,<BR>\n" );
document.write( "tutor_paul@yahoo.com\r<BR>\n" );
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document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );