document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=73594>Question 73594</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0078250838/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> can someone help me with this please (1/2x-10)(1/2x+10)<BR>\n" );
document.write( "thanks a lot. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #52640 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=52640\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1/2x-10)(1/2x+10)<BR>\n" );
document.write( "1/2x*1/2x=1/4x^2<BR>\n" );
document.write( "1/2x*10=5x<BR>\n" );
document.write( "1/2x*-10=-5x<BR>\n" );
document.write( "-10*10=-100 now combine all these terms & we get<BR>\n" );
document.write( "(1/4x^2-100) bwcause the 5x & the -5x cancel out.<BR>\n" );
document.write( " </SPAN>\n" );
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