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1=4^(x-3)
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GPT-5 mini
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4^(x-3) = 1. Since 4 ≠ 1 and 4^0 = 1, the exponent must be 0:
x − 3 = 0 ⇒ x = 3.
(Or take logs: ln1 = (x−3)ln4 ⇒ 0 = (x−3)ln4 ⇒ x = 3.)
x − 3 = 0 ⇒ x = 3.
(Or take logs: ln1 = (x−3)ln4 ⇒ 0 = (x−3)ln4 ⇒ x = 3.)
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