document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331640>Question 331640</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%5E%282x%29+-+3+%2A+2%5Ex+-+40=+0+ ALIGN=MIDDLE  ALT=\"+2%5E%282x%29+-+3+%2A+2%5Ex+-+40=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237726 by </B><A HREF=/tutors/aboutme.mpl?userid=jrfrunner><B>jrfrunner(365)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jrfrunner><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=jrfrunner><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=237726\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%5E%282x%29+-+3+%2A+2%5Ex+-+40=+0+ ALIGN=MIDDLE  ALT=\"+2%5E%282x%29+-+3+%2A+2%5Ex+-+40=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2%5Ex ALIGN=MIDDLE  ALT=\"y=2%5Ex\"   DISABLED_style= \"max-width:90%; height:auto;\" >  then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Y%5E2=%282%5Ex%29%5E2+=+2%5E%282x%29 ALIGN=MIDDLE  ALT=\"Y%5E2=%282%5Ex%29%5E2+=+2%5E%282x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "substitute in problem equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Y%5E2+-+3%2Ay+-40+=0 ALIGN=MIDDLE  ALT=\"Y%5E2+-+3%2Ay+-40+=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "factor this equation\r<BR>\n" );
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document.write( "(Y-8)*(y+5)=0\r<BR>\n" );
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document.write( "either y=8 or y=-5<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Case y=8\r<BR>\n" );
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document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8+=+2%5Ex ALIGN=MIDDLE  ALT=\"8+=+2%5Ex\"   DISABLED_style= \"max-width:90%; height:auto;\" > solve for x   <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln8+=+ln%282%5Ex%29+=+x%2Aln2 ALIGN=MIDDLE  ALT=\"ln8+=+ln%282%5Ex%29+=+x%2Aln2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "ln8/ln2 = x<BR>\n" );
document.write( "3=x<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Case y=-5<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-5+=+2%5Ex ALIGN=MIDDLE  ALT=\"-5+=+2%5Ex\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "ln(-5)=x*Ln2   STOP!!!!  ln(-5) does not exit, log exist only for values greater than 0<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "so there is only one answer: X=3 </SPAN>\n" );
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