Question

Determina numerele naturale x,y,astfel incat:(x-3)* (y+2) =12

Answer 1

(x-3)(y+2) = 12 
x > 3    x- 3 = 1  x = 4     y + 2 = 12   y = 10
x-3 = 2    x = 5   y+ 2= 6    y = 4
x -3 = 3    x = 6   y + 2= 2   y = 0