Answer:
Step-by-step explanation:
(2x-1)²+8√2xy=4
4y-√8xy-1=1
4y-2√2 x=2
multiply by 4
16y-8√2xy=8
add to first eq.
(2x-1)²+16y=12
or
16y=-(2x+1)²+12
which gives us a downward parabola.
