" Number of pairs "(x,y)" of real number that satisfy "2x^(2)+y^(2)+2xy-2y+2=0," is "

Number of pairs (x,y) real number that satisfy 2x^(2)+y^(2)+2xy-2y+2=0, is

The number of distinct pairs (x,y) of the real number satisfying x=x^(3)+y^(4)and y=2xy is :

The number of distinct pairs (x,y) of the real number satisfying x=x^(3)+y^(4) and y=2xy is

The number of distinct pairs (x,y) of the real number satisfying x=x^(3)+y^(4)and y=2xy is :

The number of ordered pairs (x, y) of real number satisfying 4x^2 - 4x + 2 = sin^2 y and x^2 + y^2 <= 3 equal to

The number of ordered pairs (x,y) of real number satisfying 4x^(2)-4x+2=sin^(2)y and x^(2)+y^(2)<=3 equal to

The number of ordered pairs (x, y) of real number satisfying 4x^2 - 4x + 2 = sin^2 y and x^2 + y^2 <= 3 equal to

The number of ordered pairs (x,y) of real numbers that satisfy the simultaneous equations x+y^(2)=x^(2)+y=12 is

the number of distinct pairs (x y of real numbbers that satisy the equation 4x^(2)+4xy+2y^(2)-2y+1=0