Answer:
3n² - 6n + 4
Explanation:
To obtain g(f(n)), substitute n = f(n) into g(n), that is
g(f(n))
= g(n² - 2n)
= 3(n² - 2n) + 4 ← distribute parenthesis
= 3n² - 6n + 4 ← in standard form
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