Which of the following are the layers of a data

I. 3x² - 14x + 15 = 0

II. 15y² - 34 y + 15 = 0

I. 2x² + 5x + 2 = 0

II. 4y² = 1

If x² - 3x - 18 = 0 and y² + 9y + 18 = 0, which of the following is true?

I. 12x² - 55x + 63 = 0

II. 10y² - 47y + 55 = 0

I.  3y² + 13y - 16 = 0

II. 3x² – 13x + 14 = 0

I. 27x² + 120x + 77 = 0

II. 56y² + 117y + 36 = 0

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

Equation 1: x² - 38x + 352 = 0

Equation 2: y² - 38y + 312 = 0

I. x² + x – 42 = 0

II. y² + 6y – 27 = 0

I. 84x² - 167x - 55 = 0

II. 247y² + 210y + 27 = 0

I. 6x² + 19x + 10 = 0

II. y² + 10y + 25 = 0