Question

solve equation n(n-1)(n-2)​

Answer 1

$(n)(n - 1)(n - 2) = ({n}^{2} - n)(n - 2)$

$= {n}^{3} - 2 {n}^{2} - {n}^{2} + 2n$

${n}^{3} - 3 {n}^{2} + 2n$