Which quadratic equation is equivalent to (x – 4)2 – (x – 4) – 6 = 0?
(u - 4)2 – (u – 4) – 6 = 0 where u = (x-4)
o 02-(u - 4) – 6 = 0 where u = (x – 4)
o 02-16 - -6 = 0 where u = (x – 4)
02-4-6 = 0 where u = (x – 4)

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