Question

f(n) = n2 - 2n; Find f(n2).

Answer 1

Answer:

$n^{4}$ - 2n²

Step-by-step explanation:

To evaluate f(n²) substitute n = n² into f(n), that is

f(n²) = (n²)² - 2(n²) = $n^{4}$ - 2n²