Question 3 • Mathematics III
Use the log rule 3 ln 2 = ln(2³) and combine the left side: ln 8 + ln 8 = ln 64. The equation becomes ln 64 = 2 ln(4x) = ln((4x)²), so (4x)² = 64. Since the logarithm requires x > 0, 4x = 8 and x = 2; the correct choice is “x is equal to 2.”
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