11^x2-2x-5 = 1/121 =

kalau misalnya bingung langsung tanya aja

11^(x²-2x-5) = 1/121
11^(x²-2x-5) = 1/11²
11^(x²-2x-5) = 11^-2
x² - 2x - 5 = -2
x² - 2x - 5 + 2 = 0
x² - 2x - 3 = 0
(x - 3)(x + 1) = 0
x = 3 atau x = -1