4x²-(x-1)²=0怎么解方程
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4x²-(x-1)²=0怎么解方程
4x²-(x-1)²=0怎么解方程
4x²-(x-1)²=0怎么解方程
4x-(x-1)=4x-x+1=3x+1=0,所以3X=-1,答案是x=-1/3
先把x-1的平方解出来,好解吧
1/3,-1
4x²-x²-1=0
3x²=1
x²=1/3
x=厂1/3
(2x+x-1)(2x-x+1)=0
(3x-1)(x+1)=0
x=-1或x=1/3
简单解法:
4x^2-(x-1)^2=0
4x^2=(x-1)^2
2x=x-1, x=-1
或: 2x=1-x, x=1/3
x1=-1,
x2=1/3
简单明白,欢迎采纳!
4X^2-(X-1)^2=0
(2X)^2-(X-1)^2=0
(2X-X+1)(2X+X-1)=0
(X+1)(3X-1)=0
所以:X+1=0或3X-1=0
即:X=-1或X=1/3
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