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29 September, 00:07

For what values of x does f (x) = x^2 + 9x + 20 reach its minimum value?

+5
Answers (1)
  1. 29 September, 00:57
    0
    That can be factored as:

    (x+5) * (x+4)

    Therefore x = - 5 and x = - 4
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