Question

990=n(n^2-1)
could any one answer this pls fast​

Answer 1

Step-by-step explanation:

Write n(n+1)(n-1)=990=11*9*10

See that (n-1)(n)(n+1) are 3 consequtive integers. and the prome factorization of 990 yeilds 9*10*11  Which is what we want, So, n=10