document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=86120>Question 86120</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/053691320x/algebrahomeworkh>introductory algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> 1. How do I perform the indicated operation?\r<BR>\n" );
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document.write( "3       5<BR>\n" );
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document.write( "2b    3b^3\r<BR>\n" );
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document.write( "2.  Subtraction:\r<BR>\n" );
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document.write( "   _____2x____  -    ___7___<BR>\n" );
document.write( "   x^2-13x+42          x-6\r<BR>\n" );
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document.write( "3. Find LCD:\r<BR>\n" );
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document.write( "_____7_____,   ___8___<BR>\n" );
document.write( "a^2+2a-63        a+9\r<BR>\n" );
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document.write( "4. Perform the indicated operation. Simplify if possible.\r<BR>\n" );
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document.write( "___6a^2-8a-8___   / ___a-2___<BR>\n" );
document.write( "   2a^2-9a-56          a-8\r<BR>\n" );
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document.write( "Thanks!\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 #62284 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=62284\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. How do I perform the indicated operation?\r<BR>\n" );
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document.write( "3       5<BR>\n" );
document.write( "___ - ___<BR>\n" );
document.write( "2b    3b^3<BR>\n" );
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document.write( "lcd = 6b^3<BR>\n" );
document.write( "Rewrite each fraction with the lcd as its denominator:<BR>\n" );
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document.write( "= 9b^2/lcd - 10/lcd<BR>\n" );
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document.write( "Combine the numerators to get:<BR>\n" );
document.write( "= [9b^2-10]/6b^3<BR>\n" );
document.write( "=======================\r<BR>\n" );
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document.write( "2.  Subtraction:\r<BR>\n" );
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document.write( "   _____2x____  -    ___7___<BR>\n" );
document.write( "   x^2-13x+42          x-6<BR>\n" );
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document.write( "lcd = (x-6)(x-7)<BR>\n" );
document.write( "Rewrite:<BR>\n" );
document.write( "[2x/lcd] - [7(x-7)/lcd]<BR>\n" );
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document.write( "Combine:<BR>\n" );
document.write( "= [2x-7x+49]/lcd<BR>\n" );
document.write( "= [-5x+49]/[x^2-13x+42]<BR>\n" );
document.write( "=============\r<BR>\n" );
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document.write( "3. Find LCD:\r<BR>\n" );
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document.write( "_____7_____,   ___8___<BR>\n" );
document.write( "a^2+2a-63        a+9<BR>\n" );
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document.write( "Rewrite:<BR>\n" );
document.write( "7/[(a+9)(a-7)], 8/(a+9)<BR>\n" );
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document.write( "LCD = (a+9)(a-7)<BR>\n" );
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document.write( "4. Perform the indicated operation. Simplify if possible.\r<BR>\n" );
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document.write( "___6a^2-8a-8___   / ___a-2___<BR>\n" );
document.write( "   2a^2-9a-56          a-8<BR>\n" );
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document.write( "Factor where you can to get:<BR>\n" );
document.write( "[2(a-2)(3a+2)/(a-8)(2a+7)]<BR>\n" );
document.write( "Cancel where you can to get:\r<BR>\n" );
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document.write( "=[2(3a+2)/(2a+7)]<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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