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3 April, 04:43

For what values of x is the rational expression below undefined?

Check all that apply.

x-4/3x^2-75

A. - 3

B. - 4

C. 3

D. - 5

E. 4

F. 5

+5
Answers (1)
  1. 3 April, 07:26
    0
    (x-4) / (3) (x+5) (x-5)

    In order for the rational expression to be undefined, the denominator must be equal to 0.

    Thus, set 3 (x+5) 9 (x-5) = 0

    x=5 and - 5
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