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(3^2)^(2x-4) = (3^-3)^(x^2-4)
3^(4x - 8) = 3^(-3x^2 + 12)
kedua base sudah sama, maka berlaku :
4x - 8 = -3x^2 + 12
3x^2 + 4x - 20 = 0
(3x + 10)(x - 2) = 0
pembuat nol :
3x + 10 = 0 ----> x = -10/3
atau
x - 2 = 0 ------> x = 2
so, solusi untuk x = {-10/3 , 2}