Ⅰ. x 2 – 7x + 12 = 0 Ⅱ. y 2 + y – 12 = 0

From the given equations , we can say that From equation Ⅰ. x² - 7x + 12 = 0 ⇒ x² - 4x - 3x + 12 = 0 ⇒ x( x - 4 ) - 3( x - 4 ) = 0 ⇒ ( x - 3 )( x - 4 ) = 0 ⇒ x = 3 or x = 4From equation Ⅱ. y² + y - 12 = 0 ⇒ y² + 4y - 3y - 12 = 0 ⇒ y( y + 4 ) - 3( y + 4 ) = 0 ⇒ ( y - 3 )( y + 4 ) = 0 ⇒ y = 3 or y = - 4 From above both equations it is clear that x ≥ y is correct answer .