Evaluate each expression.

6! =

3! - 2! = 1

6!=720

3! • 2!=12

Step-by-step explanation:

We must recall that the factorial of a number n (positive or zero) is the product of all the integers from n down to 1

n! = n (n-1) (n-2) ... 1

Let's evaluate the given expressions

6!=6/cdot 5/cdot 4/cdot 3/cdot 2/cdot 1=720

Similarly

3!/cdot 2! = (3/cdot 2/cdot 1) / cdot (2/cdot 1) = 6/cdot 2=12

Finally

/displaystyle / frac{6!}{3!}=/frac{6/cdot 5/cdot 4/cdot 3/cdot 2/cdot 1}{3/cdot 2/cdot 1}

/displaystyle / frac{6!}{3!} = / frac{720}{6}=120