X 2 2y 6 0 July 8, 2019 16 32 64 128 X 2 y 2 6x 2y 6 0 X 2 3xy 2y 2 6 0 X 2y 2 0 2x y 6 0 X 2y 2 0 2x y 6 0 by substitution method X 2 2y 2 2xy 2x 4y 6 0 Convert 2y 2 x 4y 6 0 into standard form Cho c x 2 y 2 6x 2y 6 0 X-y 2
