Question

Find domain and range of
f(x) = n²-3n+2​

Answer 1

✤ [Question ] ✤

Find domain and range of

f(x) = n²-3n+2

✤ [Answer] ✤

$f(x) = (x - 1)(x - 2)$

[Explanation] ⤵

$f(n) = n²-3n+2 \\ \: \: \: f(x) = x {}^{2} - 3x + 2 \\ f(x) = x {}^{2} - (2 + 1)x + 2 \\ f(x) = x {}^{2} - 2x - x + 2 \\ f(x) = x(x - 2) - 1(x - 2) \\ f(x) = (x - 1)(x - 2)$

Hope its help:)