((n+3)!-n!)/n!=719, then n =?
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Answered by
7
Answer: 7
Step-by-step explanation:
(n+3)!/n! - 1 = 719
(n+3)(n+2)(n+1)n!/n! = 720
(n+3)(n+2)(n+1) = 10*9*8
n+3 = 10
n=7
muditbaid:
hola
Hello
And also complex solution which is not valid
is this not the correct answer?
Absolutely correct ✅
Answered by
3
(n+3)-n /n= 719
2n-3n/n=719
-1n/n=719
-1×1/n=719
-1/n= 719
-1-719=n
-720=n,,
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