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(3^x)^2 – 4 (3^x) + 3 = 0 , misalkan p = 3^x
p^2 – 4p + 3 = 0
(p – 3) (p – 1)
p=3 , p=1
( masukan ke pemisalan tadi p= 3^x)
Jadi.. p=3 --> 3 = 3x
x= 1
p=1 --> 1 = 3x
x = 0