Your answer is correct, Melody...look at the graph....https://www.desmos.com/calculator/0wasx7syzk
This approches 2.718..... = 'e" as x approaches infinity....
[Nice trick of multiplying the top and bottom by e^x....!!! ]
Please can another mathematician check this answer.
I'm not good at limits so my answer will probably be wrong but I always think I learn better if I get involved.
Lim x-> infinity of (ex + x)1/x
\\\displaystyle\lim_{x\rightarrow\infty}\;(e^x+x)^{1/x}\\\\ =\displaystyle\lim_{x\rightarrow\infty}\;\left(\frac{e^x}{1}\cdot \frac{(e^x+x)}{e^x}\right)^{1/x}\\\\ =\displaystyle\lim_{x\rightarrow\infty}\;\left[\left(1+ \frac{x}{e^x}\right)^{1/x}\cdot (e^x)^{1/x}\right]\\\\ =\displaystyle\lim_{x\rightarrow\infty}\;\left[\left(1+ \frac{x}{e^x}\right)^{1/x}\cdot e\right]\\\\ =\;e\times\;\left[\left(1+ 0}\right)^{1/x}\right]\\\\ =\;e
Your answer is correct, Melody...look at the graph....https://www.desmos.com/calculator/0wasx7syzk
This approches 2.718..... = 'e" as x approaches infinity....
[Nice trick of multiplying the top and bottom by e^x....!!! ]