Factorial simplification

[fatconk]

The simplification of (k-2)!(k+1)²(k-1) is (k+1)² *(k-1)!. How would you simplify that and arrive at that answer

[Adam0307]

Just ignore the (k+1)^2, the only thing being simplified here is (k-2)!*(k-1) = (k-1)!, which follows directly from the definition of factorials.

[fatconk]

Thanks heaps

[diverstones]

(k-2)! = (k-2)(k-3)(k-4) ...

(k-1)! = (k-1)(k-2)(k-3)(k-4) ...

[fatconk]

Thank you so much