(a) Factor 3xy-4x^2-36y+48x.
(b) If (x, y) satisfies the simultaneous equations
3xy-4x^2-36y+48x=0,
x^2-2y^2=16,
where x and y may be complex numbers, determine all possible values of y^2
(x - 12) (3y - 4x )
Then what about part b?
