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21 October, 00:26

If f (x) = 3x + 2 and g (x) = x2 + 1, which expression is equivalent to (FoG) (x) ?

(3x + 2) (x 2 + 1)

3x 2 + 1 + 2

(3x + 2) 2 + 1

3 (x 2 + 1) + 2

+2
Answers (1)
  1. 21 October, 00:33
    0
    It means f (x) is composed of g (x)

    f (g (x)) = 3g (x) + 2

    = 3 (x^2 + 1) + 2

    3 (x 2 + 1) + 2 is the answer (fourth choices)
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