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19 June, 04:49

1. Which function has zeros at x = - 2 and x = 5?

A.) f (x) = x^2 + 2x - 10

B.) f (x) = x^2 - 2x - 10

C.) f (x) = x^2 + 3x - 10

D.) f (x) = x^2 - 3x - 10

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Answers (1)
  1. 19 June, 08:21
    0
    Working backward ...

    x = - 2

    x + 2 = 0

    x = 5

    x - 5 = 0

    (x + 2) (x - 5) =

    x^2 - 5x + 2x - 10=

    x ^2 - 3x - 10

    Answer D
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