Which instrument is used to examine the interior of the

I. 2x² - 5x - 33 =0

II. 2y² + 5y - 25 = 0

I. x² - 33x + 270 = 0

II. y² - 41y + 414 = 0

I. 3p²  + 13p + 14 = 0

II. 8q²  + 26q + 21 = 0

I. x² - 19x + 84 = 0

II. y² - 25y + 156 = 0

I. 8x² - 78x + 169 = 0

II. 20y² - 117y + 169 = 0

I. x² - 9x - 52 = 0

II. y² - 16y + 63 = 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. 2x² + 15 x - 27 = 0

II. 3 y² + 25 y - 18 = 0

I. x − √2401 = 0

II. y² − 2401 = 0

I. x² + 3x – 154 = 0

II. y² + 5y – 126 = 0