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26 September, 03:24

If f (n) = (2n + 3) 2 - 2n, which statement is true?

1. f (3) = 75

2. f (2) = 619

3. f (5) = 16

4. f (-4) = - 3

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Answers (1)
  1. 26 September, 03:34
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    Answer: f (5) = 16

    Step-by-step explanation:

    f (n) = (2n + 3) 2 - 2n

    f (5) = ((2 x 5) + 3) 2 - 2 x 5

    f (5) = (10 + 3) 2 - 10

    f (5) = (13) 2 - 10

    f (5) = 26 - 10

    f (5) = 16
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