3(1)-1,-2(2)1,2(3)-1,-8(4)2,4(5)2,-1(6)1,-2(7)4,-2(8)-8,1
很多啊,先采纳
=(a+1)(a+2)
=(a-2)(a-1)
=(a+1)(a+8)
=(a-4)(a-2)
=(a-2)(a+1)
=(a+2)(a-1)
=(a-4)(a+2)
=(a-1)(a+8)