document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=100528>Question 100528</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am guessing this is a quadratic equation. (x+y-z)(x-y+z) <BR>\n" );
document.write( "How do I solve it? What is the name of this equation? What are the steps to solve it?<BR>\n" );
document.write( "I am an exchange student in Japan and I don't understand completly when the teacher is teaching. Thank you very much. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #73178 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=73178\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x+y-z)(x-y+z) <BR>\n" );
document.write( "Put it in the form (a+b)(a-b)<BR>\n" );
document.write( "=(x+(y-z))(x-(y-z))\r<BR>\n" );
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document.write( "= (x^2 - (y-z)^2)\r<BR>\n" );
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document.write( "That might be the answer you want, or you may want to expand it to:<BR>\n" );
document.write( "=x^2-(y^2-2yz+z^2)\r<BR>\n" );
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document.write( "=x^2-y^2-z^2+2yz<BR>\n" );
document.write( "=====================<BR>\n" );
document.write( "Enjoy your stay.<BR>\n" );
document.write( "=====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );