document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1394>Question 1394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you factorise 16-9y2 , x2+7x+12 , x3-x  , 16-14t-2t2 , x4-2x2-8 please I really need this help!!!Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #465 by </B><A HREF=/tutors/aboutme.mpl?userid=DeepaEvangeline><B>DeepaEvangeline(15)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=DeepaEvangeline><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=465\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 16 - 9y2\r<BR>\n" );
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document.write( "a2 - b2 = (a+b)(a-b)\r<BR>\n" );
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document.write( "Here a = 4 and b = 3y<BR>\n" );
document.write( "= (4-3y)(4+3y)\r<BR>\n" );
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document.write( "x2+7x+12\r<BR>\n" );
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document.write( "Multiply the coefficient of x2 and the constant.<BR>\n" );
document.write( "12 = 4 x 3 and when you add 4 and 3 you get 7 which is the co efficient of x.\r<BR>\n" );
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document.write( "Therefore the above eqn can be written as <BR>\n" );
document.write( "x2 + 4x + 3x + 12<BR>\n" );
document.write( "= x(x+4) + 3(x+4)<BR>\n" );
document.write( "= (x+3)(x+4)\r<BR>\n" );
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document.write( "x3-x = x(x2-1)<BR>\n" );
document.write( "= x(x+1)(x-1)\r<BR>\n" );
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document.write( "16 - 14t - 2t2\r<BR>\n" );
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document.write( "Multiply the coefficient of t2 and the constant<BR>\n" );
document.write( "16 x 2 = 32\r<BR>\n" );
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document.write( "Represent 32 = 16 x 2 and when you subtract them (16-2) you get 14 which the co efficient of t.\r<BR>\n" );
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document.write( "16 - 16t + 2t - 2t2<BR>\n" );
document.write( "16(1-t) + 2t(1-t)<BR>\n" );
document.write( "(16+2t)(1-t)<BR>\n" );
document.write( "2(8+t)(1-t)\r<BR>\n" );
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document.write( "x4 - 2x2 - 8\r<BR>\n" );
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document.write( "Multiply the coefficient of x4 and the constant<BR>\n" );
document.write( "1 x 8 = 8\r<BR>\n" );
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document.write( "Represent 8 = 4 x 2 and when you subtract them (4-2) you get 2 which the co efficient of x2.\r<BR>\n" );
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document.write( "x4 - 4x2 + 2x2 - 8<BR>\n" );
document.write( "x2(x2-4) + 2(x2-4)<BR>\n" );
document.write( "(x2+2)(x2-4)<BR>\n" );
document.write( "(x2+2)(x-2)(x+2)\r<BR>\n" );
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document.write( "  </SPAN>\n" );
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