document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=65364>Question 65364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> evaluate: a^2-b^2 over a-b when a=3 and b= -4<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #45942 by </B><A HREF=/tutors/aboutme.mpl?userid=babynarah2007><B>babynarah2007(12)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=babynarah2007><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=45942\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solution by EXPLAIN simplification of an expression<BR>\n" );
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document.write( "Simplify a^2-b^2overa-b when a=3 and b=-4<BR>\n" );
document.write( "use simply substitution/evaluating\r<BR>\n" );
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document.write( " a^2-b^2 over a-b mean: divide a^2-b^2/a-b<BR>\n" );
document.write( " so,a=3and b=-4 mean simply them to the equations<BR>\n" );
document.write( " (3)^2-(-4)^2/3-(-4)<BR>\n" );
document.write( "= 9-16/3+4<BR>\n" );
document.write( "=-7/7<BR>\n" );
document.write( "=-1 (now it's done!)<BR>\n" );
document.write( "the answer is (-1)<BR>\n" );
document.write( "Happy X'mas and Happy New year<BR>\n" );
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