来自韩志韧的问题
(a+1)(a+2)(a+3)-24用因式分解怎么做
(a+1)(a+2)(a+3)-24用因式分解怎么做
1回答
2020-09-11 10:51
(a+1)(a+2)(a+3)-24用因式分解怎么做
(a+1)(a+2)(a+3)-24用因式分解怎么做
(a+1)(a+2)(a+3)-24=a^3+6a^2+11a-18=(a^3-1)+(6a^2+11a-17)=(a-1)(a^2+a+1)+(a-1)(6a+17)=(a-1)(a^2+7a+18)