(2) 2 square of. 4x - 3xy = 2 square of 2Y - 2 (2 square of 2x - 5xy + 2 square of Y) (where x = 2, y = 3)

(2) 2 square of. 4x - 3xy = 2 square of 2Y - 2 (2 square of 2x - 5xy + 2 square of Y) (where x = 2, y = 3)

4x 3xy - X - 9 = 3x 3xy - 9 = 3 × 23 × 2 × (- 3) - 9 = 12 - 18 - 9 = - 15, substituting x = 2, y = - 3 into the formula, 64-