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23 September, 15:22

F (x) = x^2+3x ... find f (2-a)

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Answers (2)
  1. 23 September, 16:15
    0
    (2-a) ^2 + 3 (2-a)

    A^2 - 2a + 4 + 6 - 3a

    A^2 - 5a + 10
  2. 23 September, 18:45
    0
    f (x) = x^2 + 3x

    Replace x with (2 - a).

    f (2 - a) = (2 - a) ^2 + 3 (2 - a)

    f (2 - a) = 4 - 4a + a^2 + 6 - 3a

    f (2 - a) = a^2 - 7a + 10
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