Question

What is the solution to the equation log4 x + log4 8 = 3 ?

x = one–half

x = 2

x = 8

x = 32

Answer 1

log4 x + log4 8 = 3
log4 8x = 3
8x = 4^3
8x = 64
x = 8

Answer 2

log4 x + log4 8 = 3
log4 8x = 3 .. as log a + log b = log ab
8x = 4 ^3 raise to the power of 4 on both side and (a^loga x = x)

x = 64/8 = 8