SOLUTION: When a number N is multiplied by another number which is 1 less than N, the result is 156. Find the number N.

Algebra ->  Equations -> SOLUTION: When a number N is multiplied by another number which is 1 less than N, the result is 156. Find the number N.       Log On


   

Question 1076039: When a number N is multiplied by another number which is 1 less than N, the result is 156. Find the number N.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
n(n-1)=156
n^2-n-156=0
(n-13)(n+12)=0
n=13,-12
so 13*12
or -12 and -13 both work.