If n is such that 36 ≤ n ≤ 72, then x = (n2 + 2√n(n + 4)

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Choose the correct option.

If n is such that 36 ≤ n ≤ 72, then x = (n2 + 2√n(n + 4) + 16) / (n+ 4√n+ 4) satisfies

A. 20 < x < 54
B. 23 < x < 58
C. 25 < x < 64
D. 28 < x < 60

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