Faktorkanlah 1. x²+5x-142.x²-19x+843.x²+11x+244.5x²-7x-6e.14x+19x-3

1. (x + 7)(x – 2)
2. (x – 7)(x – 12)
3. (x + 8)(x + 3)
4. (5x + 3)(x – 2)
5. (7x – 1)(2x + 3)