Question 350724
x(x+1)=x+x+1+1
x^2+x=2x+2
x^2-x-2=0
x^2-2x+x-2=0
x(x-2)+1(x-2)=0
(x+1)(x-2)=0
x=-1 OR x=2
..
The numbers are -1,0 & 2,3