Question

How do you find `f(n^2)` given `f(n)=n^2-2n`?

Answer 1

`f(n^2) =n^4 - 2 n^2`

Explanation:

`f(n) = n^2 -2 n :. f(n^2) = (n^2)^2 -2 (n^2) =n^4 - 2 n^2` [Ans]