document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=621500>Question 621500</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need some help\r<BR>\n" );
document.write( "\n" );
document.write( "Add. Simplify if possible.\r<BR>\n" );
document.write( "\n" );
document.write( "(2/vz^2) + (9/v^2z) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #390808 by </B><A HREF=/tutors/aboutme.mpl?userid=math-vortex><B>math-vortex(648)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math-vortex><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=math-vortex><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=390808\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi, there--<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Add. Simplify if possible.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2Fvz%5E2%29+%2B+%289%2Fv%5E2z%29 ALIGN=MIDDLE  ALT=\"%282%2Fvz%5E2%29+%2B+%289%2Fv%5E2z%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "Even though you have a couple of variables here, you are basically adding together to fractions. Just like in elementary school, in order to add fractions they must have the same denominator.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "I notice that fractions have the variables v and z raised to different powers in the denominator. I can pretty easily make a common denominator of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v%5E2z%5E2 ALIGN=MIDDLE  ALT=\"v%5E2z%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > . Multiply the first fraction by v/v and multiply the second fraction by z/z.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2Fvz%5E2%29%2A%28v%2Fv%29%2B%289%2Fv%5E2z%29%2A%28z%2Fz%29 ALIGN=MIDDLE  ALT=\"%282%2Fvz%5E2%29%2A%28v%2Fv%29%2B%289%2Fv%5E2z%29%2A%28z%2Fz%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "Simplify by combining like terms. Remember, when we multiply exponential expressions we add the exponents.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2v%2Fv%5E2z%5E2%2B9z%2Fv%5E2z%5E2 ALIGN=MIDDLE  ALT=\"2v%2Fv%5E2z%5E2%2B9z%2Fv%5E2z%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "Now we add two fractions with the same denominator. Add the numerators; the denominators stay the same.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282v%2B9x%29%2Fv%5E2z%5E2 ALIGN=MIDDLE  ALT=\"%282v%2B9x%29%2Fv%5E2z%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "Hope this helps. Feel free to email if there's any part that doesn't make sense yet.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ms.Figgy<BR>\n" );
document.write( "math.in.the.vortex@gmail.com </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );