How do you simplify 12times11times10times9!?

1 Answer
r3cebarnett
Jul 18, 2016

Either 12! or 479001600

Explanation:

Depending on what you mean by simplifying. 12*11*10*9! is simply 12! because 12! is just 12*11*10*9*8*7*6*5*4*3*2*1 and 9! is just 9*8*7*6*5*4*3*2*1.

Now if you want to simplify to an easier to read expression, then you can just write 12! and be done with it, however if you want to get the value for it, you will have to multiply each of the numbers out which can be a little tedious without a calculator. Assuming you have a calculator just type 12*11*10*9*8*7*6*5*4*3*2*1 to get your answer of 479001600 which is equivalent to 12!.

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