Hey guys, need some help with this question. I am stuck and don't know what to do.

Q: Show that using newton's method to $\displaystyle 1-\frac{R}{x^n}$ and to $\displaystyle x^n-R$ for determining $\displaystyle (R)^{\frac{1}{n}}$ results in 2 similar, but different iterative formulas, with $\displaystyle n \ge 2$ and $\displaystyle R >0$

Thanks for your help guys!