Question

5(2)^x=40 what is the value of x

Answer 1

x = log(40)

Explanation:

`5(2)^(x) =40`

`10^(x) =40`

`10^(x) =40`

x = log(40)

Answer 2

x=3

Explanation:

5(2)^x=40

Divide each side by 5

5 /5 *(2)^x=40/5

2^x = 8

Rewriting 8 as 2^3

2^x = 2^3

The bases are the same so the exponents are the same

x=3