Question

1) 2³ - log 5 na base 2

2) 5² - log 4 na base 5

Answer 1

2^3-2^x=5
3-x=5
-x=5-3
-x=2.(-1)
x=2

5^2-5^x=4
2-x=4
-x=4-2
-x=2 (-1)
x=2