Question

Solve the equation `4e^2-2x-9=-4`?

Answer 1

`x=12.278`

Explanation:

As you rightly mentioned `4e^2-2x-9=-4` can be written as

`4e^2-2x=5`

or `2x=4e^2-5`

or `x=(4e^2-5)/2`

but as `e=2.71828......` `e^2~~7.389`

and hence `x=(4xx7.389-5)/2=24.556/2=12.278`