1) 3^2x-4*3^x+3=0
t=3^x
t^2-4t+3=0
D=16-12=2^2
t1=3
t2=1
3^x=3^1
x=1
3^x=1=3^0
x=0
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1) 3^2x-4*3^x+3=0
t=3^x
t^2-4t+3=0
D=16-12=2^2
t1=3
t2=1
3^x=3^1
x=1
3^x=1=3^0
x=0