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11 October, 00:31

Using the Rational Root Theorem, what are all the rational roots of the polynomial f (x) = 20x^4+x^3+8x^2+x-12?

A) - 4/5 and 3/4

B) - 4/5 and - 3/4

C) - 1, - 4/5, 3/4 and 1

D) - 1, - 4/5, - 3/4 and 1

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Answers (1)
  1. 11 October, 02:50
    0
    Solve for x by taking the square root of both sides of the equation.

    x = i, - i, 3/4, - 4/5
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