In each group, one word is correctly spelt. Find the

I. 3x² - 14x + 15 = 0

II. 15y²- 34 y + 15 = 0

The roots of the equations x² + 16x + 63 = 0

I. x² - 20x + 96 = 0

II. y² - 23y + 22 = 0

I. 8x – 3y = 85

II. 4x – 5y = 67

I. 5x + 2y = 31

II. 3x + 7y = 36

I. x³ = 1728

II. y² – 15y + 56 = 0

Equation 1: x² - 144x + 5184 = 0

Equation 2: y² - 130y + 4225 = 0

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

Equation 1: x² - 22x + 120 = 0

Equation 2: y² - 25y + 144 = 0

I. 12x²- 55x + 63 = 0

II. 10y²- 47y + 55 = 0

I. 10x² - 11x + 3 = 0

II. 42y² - 23y – 10 = 0