What is the name of the process to find errors in a

If the roots of the quadratic equation 7y² + 5y + 9 = 0 are α and β, then find the value of [(1/α) + (1/β)].

I. 27x² + 120x + 77 = 0

II. 56y² + 117y + 36 = 0

I. 8a² – 22a+ 15 = 0

II. 12b² - 47b + 40=0

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

Equation 1: 19x² - 92x + 73 = 0

Equation 2: 17y² - 76y + 59 = 0

I. 5x² – 7x – 6 =0

II. 2y² – 5y – 7 =0

I. 35x² + 83x + 36 = 0

II. 42y² + 53y + 15 = 0

I. 84x² - 167x - 55 = 0

II. 247y² + 210y + 27 = 0

I: x² + 31x + 228 = 0

II: y² + 3y – 108 = 0

I. x² + 28x + 96 = 0

II. y² + 3y - 70 = 0