(x-1)²-(x-1)(x+5)＝17

(x-1)²-(x-1)(x+5)＝17
(x-1)²-(x-1)(x+5)＝17

(x-1)²-(x-1)(x+5)＝17
原式=x的平方-2x+1-x的平方-4x+5=17 得到6x=-11 x=-11/6 望采纳!

(x-1)²-(x-1)(x+5)＝17
(x-1)[(x-1)-(x+5)]＝17
(x-1)×(-6)＝17
x-1=-17/6
x=-17/6+1
x=-11/6
希望帮得到你\(^o^)/~