B. Simplify each of the following in factorial form. Do not evaluate. a. 12 x 11 x 10 x 9! b. 72 x 7! (n + 4)(n + 5)(n +3)! C.

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B. Simplify each of the following in factorial form. Do not evaluate.
a.
12 x 11 x 10 x 9!
b.
72 x 7!
(n + 4)(n + 5)(n +3)!
с.
Transcribed Image Text:B. Simplify each of the following in factorial form. Do not evaluate. a. 12 x 11 x 10 x 9! b. 72 x 7! (n + 4)(n + 5)(n +3)! с.
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