Which of the following is used for the electrical insulation bulttons?

I. 2x²– 5x – 63 = 0

II. 2y²– 7y – 72 = 0

In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer   

I. 15y²+ 26y + 8 = 0

II. 20x²+ 7x – 6 = 0

I. 3y² - 20y + 25 = 0

II. 3x² - 8x + 5 = 0

I. 27(p + 2) = 2p(24 – p)

II. 2q² – 25q + 78 = 0

I. 12 x ² - 3 x – 15 = 0

I. 10p² + 21p + 8 = 0

II. 5q² + 19q + 18 = 0

I. x²Â - 9x - 52 = 0

II. y²Â - 16y + 63 = 0

I. 5x² = 19x – 12

II. 5y² + 11y = 12

I. 2y²+ 13y + 15 = 0

II. 2x²+ 11 x + 12 = 0