eksponen dari a.)2×=1/8 b.) 16×=1/2 c.) 7×=1/49

^ tanda pangkat
a) 2^x = 1/8
2^x = 1/2³
2^x = 2^-3
x = -3

b) 16^x = 1/2
(2^4)^x = 2^-1
2^(4×x) = 2^-1
2^4x = 2^-1
4x = -1
x = -¼

c) 7^x = 1/49
7^x = 1/7²
7^x = 7^-2
x = -2