Question Number 30032 by Penguin last updated on 15/Feb/18
$$\left({x}+\mathrm{1}\right)^{{x}} −{x}^{\left({x}+\mathrm{1}\right)} =\mathrm{1} \\ $$$${x}=? \\ $$
Commented by Penguin last updated on 15/Feb/18
$$\mathrm{x}=\mathrm{2}\:{works} \\ $$$$\mathrm{anything}\:\mathrm{else}? \\ $$
Commented by Rasheed.Sindhi last updated on 15/Feb/18
$${x}=\mathrm{1} \\ $$
Commented by mrW2 last updated on 15/Feb/18
$${x}=\mathrm{0},\:\mathrm{1},\:\mathrm{2} \\ $$