Question

aflati x,y doua numere naturale stiind ca (x-3)(y-8)=0

Answer 1

Cred ca e x-3=0 => x=3
Si y-8=0 => y=8

Answer 2

(x-3)(y-8)=0
Caz 1:
x-3=0
x=0+3
x=3
y∈N(orice numar aprtinand multimii numerelor naturale)
Caz 2:
y-8=0
y=0+8
y=8
x∈N(orice ...)
Caz 3:
x=3
y=8