If 16 - 2 = 2, 9 - 3 = 0, 81 - 1 = 8, then what is 64 - 4?

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Accepted Answer

16 ⇒ (2 + 2)2 = 42 9 ⇒ (3 + 0)2 = 32 ∴ 64 ⇒ (4 + 4)2 = 82

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