Question

Rezolvati in nr intregi ecuatia (x-1)(y+2)=-5

Answer 1

Explicație pas cu pas:

(x-1)(y+2)=-5

-5=-1*5, -5*1

1.

x-1=-1

y+2=5

2

.x-1=-5

y+2=1

3.

x-1=5

y+2=-1

Rezolvam urmatoarele sisteme:

1.x=0

y=3

2.x=-4

y=-1

3.

x=6

y=-1

Bafta!