Answer:
see explanation
Step-by-step explanation:
To evaluate f(g(x)) substitute x = g(x) into f(x)
f(g(x))
= f(3x - 4)
= 2(3x - 4) + 1
= 6x - 8 + 1
= 6x - 7
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To evaluate g(f(x)) substitute x = f(x) into g(x)
g(f(x))
= g(2x + 1)
= 3(2x + 1) - 4
= 6x + 3 - 4
= 6x - 1
