А³4 - С²4 = 4! - 4! = 1*2*3*4 - 1*2*3*4 =24-24/4 = 24-6=18
(4-3)! 2!(4-2)! 1 2*2
Ответ: 18.
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А³4 - С²4 = 4! - 4! = 1*2*3*4 - 1*2*3*4 =24-24/4 = 24-6=18
(4-3)! 2!(4-2)! 1 2*2
Ответ: 18.