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14 December, 09:34

K (x) = -2x^2+10x+5, Evaluate k (3)

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Answers (2)
  1. 14 December, 09:54
    0
    71

    Step-by-step explanation:

    -2 (3) ^2 + 10 (3) + 5

    So first you multiply the - 2 by the 3

    (-6) ^2+10 (3) + 5

    then you do the exponents

    36+10 (3) + 5

    then you multiply the 10 by 3

    36+30+5

    then you would add 36 and 30

    66+5

    then add the 5

    71
  2. 14 December, 09:58
    0
    17

    Step-by-step explanation:

    k (x) = -2x^2+10x+5

    k (3) = -2 (3) ^2+10 (3) + 5

    k (3) = -2 (9) + 30+5

    k (3) = -18+35

    = 17
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