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6 December, 13:34

If ƒ (x) = 2x2 + 3, then which of the following represent ƒ (x + 1) ?

A. 2x^2 + 2

B. x^2 + 3

C. 2x^2 + 4x + 1

D. 2x^2 + 4x + 5

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Answers (1)
  1. 6 December, 15:18
    0
    Sub (x+1) for x

    f (x+1) = 2 (x+1) ^2+3

    f (x+1) = 2 (x^2+2x+1) + 3

    f (x+1) = 2x^2+4x+2+3

    f (x+1) = 2x^2+4x+5

    D is answer
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