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23 March, 21:47

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

f (x) = x2 + 2x - 10

f (x) = x2 - 2x - 10

f (x) = x2 + 3x - 10

f (x) = x2 - 3x - 10

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Answers (2)
  1. 23 March, 21:56
    0
    The answer is D on E2020
  2. 23 March, 22:07
    0
    Zeros at x = - 2 and x = 5 means

    f (x) = (x + 2) (x - 5) ... { = 0 }

    expand

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