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1 September, 08:38

How many values of x must be excluded in the expression (x - 2) / (x + 9) (x - 5) ?

A. 0

B. 1

C. 2

D. 3

+3
Answers (2)
  1. 1 September, 08:47
    0
    Since (x + 9) and (x - 5) are both on the denominator you must exclude

    x = - 9 and x = 5 from the domain

    That will be 2 values.

    Letter C
  2. 1 September, 09:02
    0
    C. 2

    the 1x in the numerator position would "cancel out" 1 of the x's in the denominator (this description makes more sense if you viewed the entire problem written out as a fraction)
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