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) regula falsi method For (B) and (C) use initial guesses of x=-1 and xu= 0, and a stopping criterion of 1%. www

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Q: a. Determine the roots of f(x)=-12-21x+18x2-2.75x3 graphically.  In additionn, determine the first…

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.