Question

If β is a root of the equation x cube – xsquare + 2x – 1 = 0, then β^{4} is equal to
(A) β4 = 1 – β – β2
(B) β4 = 1 – β + β2
(C) β4 = 1 + β – β2
(D) β4 = 1 + β + β2

Answer 1

Answer:

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