Question

[nguyen quynh anh]

tim x,y thuoc N, biet x.y+2.x+y-13=0

Answer 1

[Nguyễn Nhật Minh]

\(\left(y+2\right)x+\left(y+2\right)=15\Leftrightarrow\left(y+2\right)\left(x+1\right)=15\)

x+1	1	3	5
y+2	15	5	3
x	0	2	4
y	13	3	1