Darius uses the polynomial identity (x−y)2=x2−2xy y2 to show that 9² = 81. what values can darius use for x and y? responses x = 81 and y = 0 x, = 81 and , y, = 0 x = 3 and y = 6 x, = 3 and , y , = 6 x = 9 and y = 81 x, = 9 and , y , = 81 x = 11 and y = 2