document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=342530>Question 342530</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a=b <BR>\n" );
document.write( "ab=b2<BR>\n" );
document.write( "ab-a2 = b2-a2<BR>\n" );
document.write( "a(b-a)=(b+a)(b-a) <BR>\n" );
document.write( "a=b+a <BR>\n" );
document.write( "a=a+a <BR>\n" );
document.write( "a=2a <BR>\n" );
document.write( "1=2 \r<BR>\n" );
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document.write( "My teacher says that 1=2 but this problem is NOT correct, can you explain to my why it will not work? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #245190 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=245190\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since you're assuming that a=b, this means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b-a=a-a=0 ALIGN=MIDDLE  ALT=\"b-a=a-a=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >. So when you divide both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b-a ALIGN=MIDDLE  ALT=\"b-a\"   DISABLED_style= \"max-width:90%; height:auto;\" >, you're basically dividing by zero (which is NOT allowed). \r<BR>\n" );
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document.write( "Jim </SPAN>\n" );
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