2.2 2.1.2 3x+6y x+2y Find the product of the following: 2.2.1 3x(2x²-5x-4) 2.2.2 (x+3)(x-4) 2.2.3 (x-5)²-(x+5)(x-5)+10x (2) (2) (2) (4) ​