Question

How do you solve `0.25^x-0.5=2`?

Answer 1

`x = -0.661`

Explanation:

`0.25^x = 2+0.5 = 2.5`

`xlog 0.25 = log2.5" take log of both sides"`

`x = (log2.5)/(log0.25)`

`x = -0.661 " 3 dp"`