Posted by Derek on Sunday, September 7, 2008 at 5:23pm.
x^2 - 4 x +(4/2)^2 = 32 +(4/2)^2
x^2 - 4x + 4 = 32 + 4
(x-2)^2 = 36
x - 2 = +6
x - 2 = -6
x = 8 or -4
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