tentukan himpunan penyelesaian dari 2x-y-8xy=0 dan 2x-3y-2xy=0

jawab

2x - y = 8xy ....bagi xy
2/y - 1/x = 8

2x - 3y = 2xy ....bagi xy
2/y - 3/x= 2


2/y - 1/x = 8
2/y - 3/x= 2 ....(-)
-4/x = 6
x = -4/6 = - 2/3

2/y - 1/x = 8
2/y + 3/2 = 8
2/y = 8 - 3/2 = 13/2
y = 4/13

x,y = (- 2/3). (4/13)