factor a^4 + b^2 + c^2 - 2 ( a^2 b - a^ 2 c + bc ) - 2 ( a^2 - b + c ) + 1
ctpengage New Member Joined Aug 3, 2008 Messages 18 Gender Male HSC 2011 Sep 20, 2008 #1 factor a^4 + b^2 + c^2 - 2 ( a^2 b - a^ 2 c + bc ) - 2 ( a^2 - b + c ) + 1
bored of sc Active Member Joined Nov 10, 2007 Messages 2,314 Gender Male HSC 2009 Sep 20, 2008 #2 ctpengage said: a^4 + b^2 + c^2 - 2 ( a^2 b - a^ 2 c + bc ) - 2 ( a^2 - b + c ) + 1 Click to expand... No idea.
ctpengage said: a^4 + b^2 + c^2 - 2 ( a^2 b - a^ 2 c + bc ) - 2 ( a^2 - b + c ) + 1 Click to expand... No idea.
Mark576 Feel good ... Joined Jul 6, 2006 Messages 515 Gender Male HSC 2008 Sep 20, 2008 #3 a4 + b2 + c2 - 2(a2b - a2c + bc) - 2(a2 - b + c) + 1 = a4 + [b2 - 2bc + 2b + c2 - 2c + 1] - 2a2b + 2a2c - 2a2 = a4 + (b - c + 1)2 - 2a2(b - c + 1) = [a2 - (b - c + 1)]2 :wave: Last edited: Sep 20, 2008
a4 + b2 + c2 - 2(a2b - a2c + bc) - 2(a2 - b + c) + 1 = a4 + [b2 - 2bc + 2b + c2 - 2c + 1] - 2a2b + 2a2c - 2a2 = a4 + (b - c + 1)2 - 2a2(b - c + 1) = [a2 - (b - c + 1)]2 :wave:
