Question

F(x)=3x-1 g(x) x^3 -5x^2 Find (f o g)(x)

Answer 1

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Answer 2

Answer:    (f o g)(x) = 3x^3-15x^2-1

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Work Shown:

f(x) = 3x-1

f(x) = 3( x ) - 1

f( g(x) ) = 3( g(x) ) - 1 ... replace every x with g(x)

f( g(x) ) = 3(x^3-5x^2) - 1 ... plug in g(x) = x^3-5x^2

f( g(x) ) = 3x^3-15x^2-1

(f o g)(x) = 3x^3-15x^2-1