From the following information calculate interest to be

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

Equation 1: 21x² - 82x + 80 = 0

Equation 2: 23y² - 132y + 85 = 0

I. 4x² - 21x + 20 = 0

II. 8y² - 22y + 15 = 0

I. 12a² – 55a + 63 = 0

II. 8b² - 50 b + 77 = 0

I. x² + 16x + 63 = 0

II. y² + 2y - 15 = 0

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

Equation 1: 6x² - 24x + 18 = 0

Equation 2: 5y² - 20y + 15 = 0

I. 2 x² - 15 + 18 = 0

II. x²- 3 + 2 = 0

I. 12x² - 55x + 63 = 0

II. 10y² - 47y + 55 = 0

l). p² - 26p + 153 = 0

ll). q² - 17q + 72 = 0

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

I: x² + 31x + 228 = 0

II: y² + 3y – 108 = 0