Faktorkanlah bentuk-bentuk aljabar berikut ini 1-15

1. (a+2)(a+4) = 0
2. (a-3)(a-6) = 0
3. (x+1)(x+3) = 0
4. (x-1)(x-8) = 0
5. (y+4)(y+4) = 0
6. (y-4)(y-15) = 0
7. (a-6)(a-2) = 0
8. (a+2)(a-10) = 0
9. (p+6)(p-2) = 0
10. (p+9)(p-4) = 0
11. (p-9)(p+4) = 0
12.(y+24)(y-3) = 0
13. (y+1)(y-72) = 0
14. (4 + x)(4+x) = 0
15. (-18 + x)(-2 + x ) = 0