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Today, 00:12

If f (x) = 2x and g (x) = x^2-1 which statement is true?

A. (f*g) (x) = 2x^2 - 1

B. (f*g) (x) = 2x (x^2-1)

C. (g*f) (x) = 4x-1

D. (g*f) (x) = 4x^2-1

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  1. Today, 00:16
    0
    For this case, the first thing we must do is multiply both functions to obtain the desired result.

    We have then:

    f (x) = 2x

    g (x) = x ^ 2-1

    Multiplying we have:

    (f * g) (x) = (2x) * (x ^ 2-1)

    Answer:

    The following statement is correct:

    B. (f * g) (x) = 2x (x ^ 2-1)
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