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17 July, 10:44

If f (x) = 7x - 3 and g (x) = x2 - 4x - 8, find (f + 9%).

A. (f+9) (x) = x2 - 3x - 5

B. (f+g) (x) = 8x2 - 4x - 11

C. ( * + g) (x) = x2 - 11x-5

D. (f+g) (x) = x2 + 3x-11

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Answers (1)
  1. 17 July, 11:24
    0
    option D

    Step-by-step explanation:

    f (x) = 7x - 3

    g (x) = x2 - 4x - 8

    we have

    (f+g) (x) = 7x - 3 + x2 - 4x - 8

    (f+g) (x) = x2 + 3x - 11
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