the first step to solving this is to split the equation into the possible cases. when the product of factors equals 0, at least one of these factors is 0.
n - 1 = 0
n + 6 = 0
n + 5 = 0
now you need the equations for n
n = 1
n = -6
n = -5
this tells us that the final solutions are the following:
n = -6, n = -5, n = 1
1 2 3
let me know if you have any further questions
:)
