document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=957033>Question 957033</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4x^2(a + b) + 4x^2(a - b) how do I factorise this<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 #584756 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=584756\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Factor out the common term 4x^2. You do so by erasing the 4x^2 terms to get\r<BR>\n" );
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document.write( "4x^2(a + b) + 4x^2(a - b)<BR>\n" );
document.write( "<s>4x^2</s>(a + b) + <s>4x^2</s>(a - b)<BR>\n" );
document.write( "(a+b)+(a-b)<BR>\n" );
document.write( "(a+a)+(b-b)<BR>\n" );
document.write( "2a+0b<BR>\n" );
document.write( "2a\r<BR>\n" );
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document.write( "Therefore, we have 2a when we erase the 4x^2 terms. Now we reintroduce the 4x^2 back in to get 4x^2*2a\r<BR>\n" );
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document.write( "So, 4x^2(a + b) + 4x^2(a - b) factors to 4x^2*2a and that turns into 8a*x^2\r<BR>\n" );
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document.write( "Jim\r<BR>\n" );
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