Digital ACT Math Practice Question #1403
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Plug in x = 3: log_3(1) + log_3(9) = 0 + 2 = 2. Instant match!
Log_3((x - 2)(x + 6)) = 2 -> (x - 2)(x + 6) = 3^2 = 9. x^2 + 4x - 21 = 0 -> (x + 7)(x - 3) = 0. Since x > 2, x = 3....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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