4x-16.x +16 – InterviewSolution

1.	4x-16.x +16
Answer» 4x^2 - 16x + 16 = 04x^2 - 8x - 8x + 16 = 04x(x - 2) -8(x - 2) =0(4x - 8)(x - 2) = 04(x - 2)(x - 2) = 0x = 2

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