document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1060994>Question 1060994</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm not sure how to set up this problem.\r<BR>\n" );
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document.write( "a) Evaluate the expression in part (a) without using a calculator.\r<BR>\n" );
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document.write( "a) Use your result from part (a) to write the expression in part (b) as a single logarithm whose coefficient is 1.\r<BR>\n" );
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document.write( "91.) a) (log25)5<BR>\n" );
document.write( "           -For this I got 1/2<BR>\n" );
document.write( "which is correct.\r<BR>\n" );
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document.write( "b.) (log25)x + (log25)(x^2-1) - (log25)(x+1) - 1/2\r<BR>\n" );
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document.write( "Really not sure what to do here.<BR>\n" );
document.write( "But the answer in the book is  two equivalent logarithmic expressions (separated by an equal sign.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #675829 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=675829\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 91.a) log(25) 5 =<BR>\n" );
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document.write( "5 = 25^x<BR>\n" );
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document.write( "x = 1/2, which is square root<BR>\n" );
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document.write( "91.b) log(25) x + log(25) (x^2 - 1) - log(25) (x+1) - 1/2<BR>\n" );
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document.write( "use the log rule - logb(x &#8729; y) = logb(x) + logb(y)<BR>\n" );
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document.write( "log(25) (x^3 - x) - log(25) (x+1) = 1/2<BR>\n" );
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document.write( "use the log rule - logb(x / y) = logb(x) - logb(y)<BR>\n" );
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document.write( "log(25) (( x^3 - x) / (x + 1)) = 1/2<BR>\n" );
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document.write( "log(25) (x * (x - 1) * (x + 1)) / (x + 1) = 1/2<BR>\n" );
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document.write( "log(25) (x^2 - x) = 1/2<BR>\n" );
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document.write( "log(25) (x^2 - x) = log(25) 5<BR>\n" );
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document.write( "log(25) 5<BR>\n" );
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document.write( " </SPAN>\n" );
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