Răspuns
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Explicație pas cu pas:
a) 6^(2x) =1/6=6^(-1).....2x=-1...x=-1/2
b)3^x=3^(3/4).......x=3/4
c) 7^(x-2)=4....x-2=log in baz 7 din 4...x=2+ log in baza 7 din 4
d)7^(2x) =1/7³=7^(-³)......2x=-3.....x=-3/2
e)2^(x+3) =2^7......x+3=7.....x=4
f) 4^(x²)=1......x²=0...........x=0
g) 3^(2x-1)=3^4.......2x-1=4.......2x=5.....x=5/2
h) (4²)^(x-1)=1/4=4^(-1)...........2x-2=-1.....2x=1...........x=1/2