document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=627072>Question 627072</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Kelly factored 16-8x + x2 as (x-4)2, while Tony factored it as (4-x)^2. Are they<BR>\n" );
document.write( "both correct? Why or why not? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #394641 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=394641\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (a-b)^2 = (a-b)(a-b)\r<BR>\n" );
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document.write( "(a-b)^2 = (-1(-a+b))(-1(-a+b))\r<BR>\n" );
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document.write( "(a-b)^2 = (-1)*(-1)*(-a+b)*(-a+b)\r<BR>\n" );
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document.write( "(a-b)^2 = (-1)*(-1)*(b-a)*(b-a)\r<BR>\n" );
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document.write( "(a-b)^2 = 1*(b-a)*(b-a)\r<BR>\n" );
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document.write( "(a-b)^2 = (b-a)(b-a)\r<BR>\n" );
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document.write( "(a-b)^2 = (b-a)^2\r<BR>\n" );
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document.write( "That last equation is true for all values of 'a' and 'b'\r<BR>\n" );
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document.write( "In this case, a = x and b = 4, so\r<BR>\n" );
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document.write( "(a-b)^2 = (b-a)^2\r<BR>\n" );
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document.write( "becomes\r<BR>\n" );
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document.write( "(x-4)^2 = (4-x)^2\r<BR>\n" );
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document.write( "which is true for all values of x\r<BR>\n" );
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document.write( "So they are both correct.\r<BR>\n" );
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document.write( "Jim<BR>\n" );
document.write( "<font color=\"red\">--------------------------------------------------------------------------------------------------------------</font> </SPAN>\n" );
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