document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=128056>Question 128056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> workbook problem i got very partial credit on... please explain/show how to solve...\r<BR>\n" );
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document.write( "(4a+1/a^2-4) - (3a-a+7/a^2-4)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #93790 by </B><A HREF=/tutors/aboutme.mpl?userid=crzyy321><B>crzyy321(5)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=crzyy321><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=93790\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Multiply a and 4 <BR>\n" );
document.write( "Multiply a and 1 \r<BR>\n" );
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document.write( "The a just gets copied along. \r<BR>\n" );
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document.write( "The answer is a \r<BR>\n" );
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document.write( "a \r<BR>\n" );
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document.write( "4*a evaluates to 4a \r<BR>\n" );
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document.write( "Multiply the exponent of a by 2giving a^2 \r<BR>\n" );
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document.write( "The answer is a^2\r<BR>\n" );
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document.write( "a^2 evaluates to  a^2\r<BR>\n" );
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document.write( "To divide 1 by a^2\r<BR>\n" );
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document.write( "The a^2 just gets copied along in the denominator. \r<BR>\n" );
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document.write( "The answer is a^--2\r<BR>\n" );
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document.write( "1/a^2 evaluates to  a^-2\r<BR>\n" );
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document.write( "4*a+1/a^2 evaluates to  4a+a^-2\r<BR>\n" );
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document.write( "The answer is 4a+a^-2-4\r<BR>\n" );
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document.write( "4*a+1/a^2-4 evaluates to  4a+a^-2-4\r<BR>\n" );
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document.write( "Multiply a and 3 \r<BR>\n" );
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document.write( "Multiply a and 1 \r<BR>\n" );
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document.write( "The a just gets copied along. \r<BR>\n" );
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document.write( "The answer is a \r<BR>\n" );
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document.write( "a \r<BR>\n" );
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document.write( "3*a evaluates to 3a \r<BR>\n" );
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document.write( "3*a-a evaluates to 2a \r<BR>\n" );
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document.write( "Multiply the exponent of a by 2giving a^2\r<BR>\n" );
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document.write( "The answer is a^2\r<BR>\n" );
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document.write( "a^2 evaluates to  a^2\r<BR>\n" );
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document.write( "To divide 1 by a^2\r<BR>\n" );
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document.write( "The a^2 just gets copied along in the denominater                  \r<BR>\n" );
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document.write( "The answer is a^-2\r<BR>\n" );
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document.write( "7/a^2 evaluates to  7a^-2\r<BR>\n" );
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document.write( "3*a-a+7/a^2 evaluates to 2a+7a^-2\r<BR>\n" );
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document.write( "The answer is 2a+7a^-2-4\r<BR>\n" );
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document.write( "3*a-a+7/a^2-4 evaluates to  2a+7a^-2-4\r<BR>\n" );
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document.write( "To subtract the polynomials and we try to subtract terms in one polynomialwith any like terms in the other polynomial. \r<BR>\n" );
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document.write( "Be very careful with the \"-\" sign in front 2a+7a^-2-4 it is to be used on all terms in it. \r<BR>\n" );
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document.write( "4a - 2a = 2a \r<BR>\n" );
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document.write( "a^-2_7a^-2=-6a^-2\r<BR>\n" );
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document.write( "-4 - -4 = 0 \r<BR>\n" );
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document.write( "The answer is 2a-6a^-2\r<BR>\n" );
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document.write( "(4*a+1/a^2-4)-(3*a-a+7/a^2-4) evaluates to  2a-6a^-2\r<BR>\n" );
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document.write( "The final answer is   2a-6a^-2<BR>\n" );
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