rckjrodriguez rckjrodriguez

24-08-2021
Mathematics

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Find (fog)(x) and (gof)(x). f(x) = 7x-7, g(x) = 4 - 2x

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ghaithgh ghaithgh

24-08-2021

Answer:

[tex](fog)(x) = f(g(x)) \\ = 7(4 - 2x) - 7 \\ = 28 - 14x - 7 \\ = 21 - 14x \\ = - 14x + 21[/tex]

[tex](gof)(x) = g(f(x)) \\ = 4 - 2(7x - 7) \\ = 4 - 14x + 14 \\ = 18 - 14x \\ = - 14x + 18[/tex]

I hope I helped you^_^

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