Given that k and n are positive integers with n greater t...

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505-555

Algebra

Given that k and n are positive integers with n greater than k, which expression is equivalent to

k! + (n-k)*(k-1)!

?

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A

k*n!

B

k! *n

C

(n-k)!

D

n*(k+1)!

E

n*(k-1)!

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Explanation

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