no. of real solution

[stuart clark]

(1) No. of real solution of the equation $2^x = 1+x^2$

(2) No. of real solution of the equation $2^x +3^x+4^x = x^2$

(3) No. of real  solution of the equation $3^x+4^x +5^x = x^2$

(4)  No. of real solution of the equation $e^x = x^n$, where $n\in \mathbb{N}$

[alpercay]

Your new questions are very similar to your old ones :)please see  http://geomania.org/forum/analiz-cebir/exponential-equation/msg9408/#msg9408

[stuart clark]

Thanks Admin.

To Admin, would you like to explain me (4)th one