(x + 2)(x - 9)
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(x - 5)(x + 12)
7x2 -4x -5x2 +2x = 2x2 -2x
-3
(x2-7x+12)/(x2-2x-3)factor the numerator & denominator:(x-4)(x-3)/(x-3)(x-1)now reduce:(x-4)(x-3)/(x+1)(x-3)(x-4)/(x+1)
Well, darling, the greatest common factor (GCF) of 14xy and 7x squared is 7x. Why? Because it's the largest number that can divide both terms without leaving a remainder. So, there you have it, 7x is the GCF, case closed.