Question

Question #b3989

Answer 1

`n=4 or n= -1`

Explanation:

`6n^2-18n-18-6=0 or 6n^2-18n-24=0 or n^2-3n-4=0 or n^2-4n+n-4=0 or n(n-4)+1(n-4)=0 or (n-4)(n+1)=0 :. n=4 or n= -1` [Answer]