Question

How do you solve `1.3^x = 8`?

Answer 1

`x=(log8)/(log1.3)`

`=7.92578`

Explanation:

Take log on both sides and then use the laws of logs to simplify and solve.

`therefore log1.3^x=log8`

`therefore xlog1.3=log8`

`therefore x=(log8)/(log1.3)`

`=7.92578`