Question

用因式分解法

Answer 1

解：移项得：2(5x-1)^2=-3(5x-1)
2(5x-1)^2+3(5x-1)=0
提取公因式(5x-1)得：
(5x-1)*[2(5x-1)+3]=0
5x-1=0 10x+1=0
x1=1/5 x2=-1/10

Answer 2

2(5x-1)² + 3(5x-1) = 0
(10x-2 -3 ) ( 5x-1 ) = 0
5 (2x -1 ) (5x-1 ) = 0
x = 2 分之1 或者 5分之1

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Answer 3

2(5x-1)²=-3(5x-1)
2(5x-1)²+3(5x-1)=0
(5x-1)(10x-2+3)=0
(5x-1)(10x+1)=0
x=1/5,x=-1/10

Answer 4

1.5x-1=0
2.5x-1不等于0
2（5x-1）=3
x=0.5