4x3 - 2x + 12x + 9 = 0 are 3, -1 and -1. explain why the fourth root must be a
three roots of the polynomial equation
real number. find the fourth root.

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sporting06

27.02.2022

Mathematics

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4x3 - 2x + 12x + 9 = 0 are 3, -1 and -1. explain why the fourth root must be a three roots of the polynomial equation real number. find the fourth root.