P, Q, R, S and T are 5 schools facing towards north. P

I. 7x² + 27x + 18 = 0

II. 19y² - 27y + 8 = 0

I. 99x² + 161 x + 26 = 0

II. 26 y² + 161 y + 99 = 0

I. 10x² + 33x + 9 = 0

II. 2y² + 13y + 21 = 0

I. 20x² - 93x + 108 = 0

II.72y² - 47y - 144 = 0

I. x³ = 1728

II. y² – 15y + 56 = 0

I. 17x² - 26x – 16 = 0

II. 17y²- 26y + 9 = 0

I. x² - 19x + 84 = 0

II. y² - 25y + 156 = 0

I. x² - x - 56 = 0

II. y² - 20y + 96 = 0

I. 3x² - 14x + 15 = 0

II. 15y² - 34 y + 15 = 0

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

Equation 1: x² - 5x + 6 = 0

Equation 2: y² - 7y + 12 = 0