Michigan State University - Diagnostic Exam

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5.3

  •   According to the rational root theorem, the possible rational roots of the polynomial equation 2x5 + 3x3 - 4x + 1 = 0 are?

    a) ±2 b) ±1 c) ±1- 2, ± 1
       
    d) ±1, ± 2 e) ±1, ± 2, ± 3, ± 4

Solution:

The possible rational roots are

f actors of one 1 - 1 1 ± --------------- = ± ---- = --- ,-,- 1,1 factors of two 1, 2 2 2

Diagnostic:

If you miss this question please review the Rational Root Theorem.

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July 15, 2008