1.(-3x-2) (3x -2) 2.(5x -2) (5x +2) 3.(-x - 3) (x + 2)

Jawab =
1. (-3x-2) (3x-2)
= -9x²-6x-6x-4
= -9x²-12x-4
2. (5x-2) (5x+2)
= 25x²+10x-10x-4
= 25x²-4
3. (-x-3) (x+2)
= -x²-2x-3x-6
= -x²-5x-6