document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154845>Question 1154845</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find a1 for the geometric sequence with the given terms a5=32 a7=128 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777349 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=777349\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%28n%29+=+a%281%29%2A+r%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"a%28n%29+=+a%281%29%2A+r%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "a(5) = a(1)*r^4<BR>\n" );
document.write( "a(7)= a(1)*r^6\r<BR>\n" );
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document.write( "32 = a(1)*r^4<BR>\n" );
document.write( "128= a(1)*r^6\r<BR>\n" );
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document.write( "r^6/r^4 = 128/32\r<BR>\n" );
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document.write( "r^2 =4\r<BR>\n" );
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document.write( "r=+/-2\r<BR>\n" );
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document.write( "Plug r \r<BR>\n" );
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document.write( "in 32 = a(1)*r^4\r<BR>\n" );
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document.write( "32 = a( 1)*16\r<BR>\n" );
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document.write( "a1=2 </SPAN>\n" );
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