Factorial Expression 728Abd
1. **Problem Statement:** Find the value of $n$ for the expression $$\frac{(n+2)!}{(n-1)!}.$$
2. **Recall the factorial definition:**
$$n! = n \times (n-1) \times (n-2) \times \cdots \times 1$$
and for any integers $a > b$,
$$\frac{a!}{b!} = a \times (a-1) \times \cdots \times (b+1).$$
3. **Rewrite the expression:**
$$\frac{(n+2)!}{(n-1)!} = (n+2) \times (n+1) \times n.$$
This is because $(n+2)! = (n+2)(n+1)n(n-1)!$, so dividing by $(n-1)!$ leaves the product of the three terms.
4. **Final simplified form:**
$$\frac{(n+2)!}{(n-1)!} = n(n+1)(n+2).$$
5. **Interpretation:**
The value of the expression depends on $n$, and it equals the product of three consecutive integers starting from $n$.
Since the problem only asks to find the value of the expression in terms of $n$, the simplified form is the answer.