4-5题用因式分解法解方程过程谢谢

2025-04-18 09:19:22
推荐回答(1个)
回答1:

(4)(x-7)(x+5)=0
x-7=0,x+5=0
x=7,x=-5
(5)(x-5)(x-2)=0
x-5=0,x-2=0
x=5,x=2