3^2x - 3^x+2 +8 =0 Ps. The topic is logarithmic and exponential functions
3^(2x) - 3^(x+2) + 8 = 0 let z = 3^x z^2 - 9 z + 8 = 0 (z-8)(z-1) = 0 z = 1 or z = 8 x = 0 or x = 2
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