ATQ, 11 × 25 + 12 × 15 + 14 × 20 + 15 = ? 5 × {(11 × 5) + (12 × 3) + (14 × 4) + 3} = ? ? = 5 × (55 + 36 + 56 + 3) ? = 5 × 150 ? = 750
I. x2 - 4x – 21 = 0
II. y2 + 12y + 20 = 0
I. 6x2 + 19x + 10 = 0
II. y2 + 10y + 25 = 0
I. 5x² - 28x + 39 = 0
II. 2y² - 13y + 20 = 0
I. 4 x ² - 4 x + 1 = 0
II. 4 y ² + 4 y + 1 = 0
...I. x3 = 1728
II. y2 – 15y + 56 = 0
I. 63x² + 37 x – 40 = 0
II. 15 y² + 29 y + 12 = 0
I: x2 - 33x + 242 = 0
II: y2 - 4y - 77 = 0
I. 40 x² - 93 x + 54 = 0
II. 30 y² - 61 y + 30 = 0
I. 20x² - 93x + 108 = 0
II.72y² - 47y - 144 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 40x + 300 = 0
Equation 2: y² - 30y + 216 = 0
