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a) ({-4)³}² ÷ (-4)⁶
= (-4)⁶ / (-4)⁶
= 1
b) (2⁰ - 3⁰)(3⁰ + 4⁰)
= (1 - 1)(1 + 1)
= 0 × 2
= 0
c) {(-1/4)²}^-3
= (-1/4)^-6
= (-4)⁶
= 4,096
d) (1/4)^-1 + (1/2)^-2 + (1/6)^-1
= 4¹ + 2² + 6¹
= 4 + 4 + 6
= 14
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