Which of the following amendments brought changes in

I. 2x² - 9 x + 9 = 0 

II. 2y² - 7 y + 3 = 0

I. 3x² + 3x - 60 = 0         

II. 2y² - 7y + 5 = 0 

I. 2 x ² + x  – 1 = 0                 

II. 2 y ² - 3 y + 1 = 0

I. 4x² - 21x + 20 = 0

II. 8y² - 22y + 15 = 0

l). p² - 29p + 204 = 0

ll). q² + 4q - 221 = 0

Solve the quadratic equations and determine the relation between x and y:

Equation 1: 3x² + 6x - 9 = 0

Equation 2: 2y² - 16y + 32 = 0

I. 12y² + 11y – 15 = 0

II. 8x² – 6x – 5 = 0

I. x² + 11x + 24 = 0

II. y² + 17y + 72 = 0

I. p² - 19p + 88 = 0   

II. q² - 48q + 576 = 0

Equation 1: x² - 45x + 500 = 0

Equation 2: y² - 60y + 600 = 0