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4 December, 15:25

If s (x) = 2-x^2and t (x) = 3x which value is equivalent to (s·t) (-7)

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Answers (2)
  1. 4 December, 15:36
    0
    987

    Step-by-step explanation:

    (s. t) (x) = s (x) * t (x) = 3x (2 - x²) = 6x - 3x³

    To evaluate (s. t) ( - 7) substitute x = - 7 into the product

    (s. t) ( - 7) = 6 ( - 7) - 3 ( - 7) ³ = - 42 + 1029 = 987
  2. 4 December, 15:52
    0
    the answer is 24 (x) - 78
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