using xo 10 ( (b) Lot f(x)-27 x⁻⁴+-162 x⁸-180x² +62x =7 (i) Show that f(x) has a zero of multiplicity 3 at x=1/3.
(ii) Use modified Newton's method to solve f(x)=0 with x₀=0. (Perform 2 iterations)