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2 March, 15:51

What are the excluded values of x for 2-3x-28/х2-2x-35

х = - 7, x = 4

x=-7, х = 5

x=-5, х = 7

х = 4 х=7

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Answers (2)
  1. 2 March, 16:23
    0
    I'm gonna have to say its c
  2. 2 March, 16:30
    0
    C

    Step-by-step explanation:

    The excluded values are the values of x that make the denominator of the rational function equal to zero as this would make the function undefined.

    Equate the denominator to zero and solve for x to obtain the values that x cannot be.

    x² - 2x - 35 = 0

    (x - 7) (x + 5) = 0 ← in factored form

    Equate each factor to zero and solve for x

    x - 7 = 0 ⇒ x = 7

    x + 5 = 0 ⇒ x = - 5

    Excluded values of x are x = - 5, x = 7 → C
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