1. 

It is desired to obtain the real-valued roots of 623-5a2+6x-4x+10+ f(x)=0, f(x) = (x-6 (a). Work with y to get a polynomial g(y) from f(x) such that f(x) = g(y)/y3. Compute = the roots of g(y) 0 using the Matlab command roots(coeff). (b). Compute f(x) for each root of g(y) = 0 (x = y2) and identify those roots for which f(x) = 0. This will not be the case with all roots of g(y) = 0. (c). Confirm these roots using Matlab function fzero using suitable guesses for x.