Grid failure brings five hundred trains to a

I.  3y² + 13y - 16 = 0

II. 3x² – 13x + 14 = 0

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

Equation 1: 31x² - 170x + 216 = 0

I. 20y² - 13y + 2 = 0

II. 6x² - 25x + 14 = 0

I. 2y² + 11y + 15 = 0

II. 3x² + 4x - 4= 0

I. 5x² = 19x – 12

II. 5y² + 11y = 12

I. x² – 13x + 40 = 0

II. 2y² – 15y + 13 = 0 

I. x² + 3x – 154 = 0

II. y² + 5y – 126 = 0

I. x² + 11x + 24 = 0

II. y² + 17y + 72 = 0

I. 4p² + 17p + 15 = 0

II. 3q² + 19q + 28 = 0