Answer :

Given,




[(2x + 4)x + 4(x + 2)-1(2x + 4)] = 0


2 + 4x + 4x + 8-2x-4 = 0


2 + 6x + 4 = 0


2 + 2x + 4x + 4 = 0


2x(x + 1) + 4(x + 1) = 0


(x + 1)(2x + 4) = 0


x = -1 or x = -2


Hence, x = -1 or x = -2


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