用因式分解法解(2x-5)²-2x+5=0
问题描述:
用因式分解法解(2x-5)²-2x+5=0
答
(2x-5)²-2x+5=0
(2x-5)²-(2x-5)=0
(2x-5)(2x-5-1)=0
2x-5=0或2x-6=0
∴x1=5/2,x2=3\(^o^)/~