(x-1)(x+4) 6=0

2025-06-27 19:27:23
推荐回答(3个)
回答1:

(x-1)(x+4)+6=0
x²+3x+2=0
(x+1)(x+2)=0
x=-1或x=-2

回答2:


see

回答3:

(x+1)^3-6(x+1)-4=0 (x+1)^3+8 -6(x+1)-12=0 【(x+1)+2】【(x+1)2-2(x+1)+4】-6【(x+1)-2】=0 【(x+1)+2】【(x+1)2-2(x+1)+4-6】=0 (x+3)(x2+2x+1-2x-2-2)=0 (x+3)(x2-3)=0 x1=-3 x2=±√3