用因式分解法解下列方程(1)2x눀-3x=0(2)x눀-8x+12=0(3)x눀-2x+1=0

2025-03-04 16:11:24
推荐回答(3个)
回答1:

(1)2x²-3x=0
解:x(2x-3)=0
x=0 2x-3=0
x1=0 x2=3/2
(2)x²-8x+12=0
解:(x-6)(x-2)=0
x-6=0 x-2=0
x1=6 x2=2
(3)x²-2x+1=0
解:(x-1)^2=0
x-1=0
x=1

回答2:

1.
2x²-3x=0
x(2x-3)=0
x=0或x=3/2
2.
x²-8x+12=0
(x-2)(x-6)=0
x=2或x=6
3.
x²-2x+1=0
(x-1)²=0
x=1

回答3:

(1)2x²-3x=0
x(2x-3)=0
x1=0 ,x2=3/2

(2)x²-8x+12=0
(x-2)(x-6)=0
x1=2 ,x2=6

(3)x²-2x+1=0
(x-1)²=0
x=1