Question

Which expression is equivalent to 4^-5 * 4^8

A 4^-2/4^-1

B (4^3)^-1

C 4^2/4^-1

D (4^-1)^3

Answer 1

Answer: C

Explanation:

`a^(b) * a^(c)=a^(b+c)`, so
`4^(-5) * 4^(8)=4^(-5+8)=4^(3)`.

The only option that is equal to this is C