Question

Aflati toate perechile de numere naturale care indeplinesc conditia :
a) x.y=12 ; b)x.y=36 ; c)x(y+1)=24 ;

d) 2xy+3x=42 ; e) (2x+1) . (y-2)=30



DAU COROANA :*

Answer 1

a) x.y=12 ;
1*12=12
2*6=12
3*4=12

b)x.y=36 ;
1*36=36
2*18=36
3*12=36
4*9=36
6*6=36

c)x(y+1)=24 ;
1*23+1)=24
2*(11+1)=24
3*(7+1)=24
4*(5+1)=24
6*(4+1)=24
8*(2+1)=24
12*(1+1)=24


e) (2x+1) . (y-2)=30; 30=2*3*5
(2*2+1)*(8-2)=5*6=30






d) 2xy+3x=42 ;

e) (2x+1) . (y-2)=30