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6 July, 02:21

If f (x) = 5x^3 and g (x) = x+1, find (f. g) (x)

A. 5x^3+1

B. 5x^4+5x^3

C. 5x^4+1

D. 6x^3

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Answers (1)
  1. 6 July, 04:43
    0
    B. 5x^4+5x^3

    Step-by-step explanation:

    (f. g) (x) = f (x) * g (x) = 5x^3 * (x+1)

    = 5x^3 * x + 5x^3 * 1

    = 5x^4 + 5x^3
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