(3x+2)^2=4(x-3)^2【用因式分解解一元方程】

2024-11-30 10:51:43
推荐回答(3个)
回答1:

(3x+2)^2=4(x-3)^2
(3x+2)^2-4(x-3)^2=0
(3x+2+2x-6)(3x+2-2x+6)=0
(5x-4)(x+8)=0
x=4/5或x=-8

回答2:

(3x+2)^2=4(x-3)^2
(3x+2)^2-4(x-3)^2=0
[(3x+2)+2(x-3)][(3x+2)-2(x-3)]=0
(5x-4)(x+8)=0
x1=0.8, x2=-8

回答3:

2=4(x-3)^2
(3x+2)^2-4(x-3)^2=0
(3x+2+2x-6)(3x+2-2x+6)=0
(5x-4)(x+8)=0