括号x加一乘以括号x减一加二乘以括号x加三等于八用因式分解法来解.

2025-02-26 15:13:57
推荐回答(1个)
回答1:

(x+1)(x-1+2(x+3))=8
(3 + x) (-1 + 3 x)=0
x=-3 x=1/3