document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=424362>Question 424362</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve<BR>\n" );
document.write( "2/z = 3/z - 1/11\r<BR>\n" );
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document.write( "Factor Completely<BR>\n" );
document.write( "4r^2-81\r<BR>\n" );
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document.write( "Factor the trinomial <BR>\n" );
document.write( "c^3-2c^2-63c\r<BR>\n" );
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document.write( "Use the Foil method to find the product<BR>\n" );
document.write( "(7x^4-2)(x^7-4)=\r<BR>\n" );
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document.write( "Multiply<BR>\n" );
document.write( "(a+d)(a^2-ad+d^2)=\r<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 #295848 by </B><A HREF=/tutors/aboutme.mpl?userid=shree840><B>shree840(260)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=shree840><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=shree840><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=295848\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are 5 problems<BR>\n" );
document.write( "1.<BR>\n" );
document.write( "2/z=3/z-1/11 multiply by z<BR>\n" );
document.write( "2=3-z/11<BR>\n" );
document.write( "z/11=3-2=1<BR>\n" );
document.write( "z=11\r<BR>\n" );
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document.write( "2.4r^2-81  this is a^2-b^2 form =(a+b)(a-b)<BR>\n" );
document.write( "(2r+9)(2r-9)\r<BR>\n" );
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document.write( "3.c^3-2c^2-63c<BR>\n" );
document.write( "take c common<BR>\n" );
document.write( "c(c^2-2c-63)<BR>\n" );
document.write( "c(c^2-9c+7c-63=<BR>\n" );
document.write( "c(c-9)(c+7)\r<BR>\n" );
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document.write( "4.(7x^4-2)(x^7-4)<BR>\n" );
document.write( "foil stands for first outer inner last<BR>\n" );
document.write( "7x^4*x^7-7x^4*4-2x^7+(-2)(-4)<BR>\n" );
document.write( "=7x^4-28x^4-2x^7+8<BR>\n" );
document.write( "=-2x^7-21x^4+8\r<BR>\n" );
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document.write( "5.(a+d)(a^2-ad+d^2)<BR>\n" );
document.write( "we will still use foil but we will multiply first with a all the numbers in the second bracket and then we multiply all the numbers in the second bracket with d\r<BR>\n" );
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document.write( "a^3-a^2d+ad^2+a^2d-ad^2+d^3<BR>\n" );
document.write( "=a^3+d^3  {everything else cancels} </SPAN>\n" );
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