5.5 (a) Determine the roots of f(x) = -12 – 21x + 18x2 – 2.75x3 graphically. In addition, determine the first root of the function with (b) bisection and (c) false position. For (b) and (c) use initial guesses of x = -1 and xu = 0 and a stopping criterion of 1%. - %3D

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