100=10^2
0,01=10^-2
0,01*100^п+3=10^-2
10^2п*10^6=10^4*10^2п=10^4+2п=10^2п+4
0,01^п:10^2п:10^2=10^(-2п+2п)
10^2=10^0:10^2=1/100
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3^x *3^2+3^x*3+3^x=39
3^x(9+3+1)=39
3^x*13=39
3^x=3
3^x=3^1
x=1