log 3 (x^2 - 4x + 4) = log 3 (81)
x^2 - 4x + 4 = 81
x^2 - 4x - 77 = 0
x = 11 ; x = -7
Ответ : -7; 11
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log 3 (x^2 - 4x + 4) = log 3 (81)
x^2 - 4x + 4 = 81
x^2 - 4x - 77 = 0
x = 11 ; x = -7
Ответ : -7; 11