a) log5 1/125 = -3
5^x=1/125
5^x=5^-3
x=-3
b) log3 √3 = 1/2
3^x=√3
3^x=3^1/2
x=1/2
c) log4 64 = 3
4^x=64
4^x=4^3
x=3
d) log8 4 = 2/3
8^x=4
2^3x=2^2
3x=2
x=2/3
e) log√6 36√6 = 3
√6^x=36√6
√6^x=√6^3