Calculation: YAEajh - 1

r  = 
4+π+ε0+ n^2+ℏ+(m+ e^2)
r = 4+π+ε0+ n^2+ℏ+(m+ e^2)$$r$$ = $$4+\pi+\varepsilon0+n^{2}+\hbar+(m+e^{2})$$
r = 4+π+ε0+ n^2+ℏ+m+ e^2$$r$$ = $$4+\pi+\varepsilon0+n^{2}+\hbar+m+e^{2}$$