tim x,y thuoc N, biet x.y+2.x+y-13=0
tim x ,y thuoc N biet x.y + 2.x +y-13=0
tim x y biet x2-5.y=x.y-4.x+1-
Tim x,y ,biet:
2.x.y+y=48
tim x,y biet x.y=252 va UCLN(x,y)=2
tim x, y thuoc Z biet : x.y - 2.x - 3.y = 5 ( trinh bay nha )
Tim hai so tu nhien x va y biet : x.y-2.x=5
Tim x,y biet x.y.(x+y)=456789
tim x va y biet x.y =x+y