Explanation:

In each column, let the number at the top be ‘x’ and the one at the bottom be ‘y’. The relation between them is as follows: y = x (x- 1). Thus the missing number is 14.

x^2-x=182 

x^2-x-182=0

X^2-14X+13X-182=0

X(X-14) + 13(C-14)=0

X=14