用配方法解方程(1)2x²-5x+3=0(2)4x²-3x+1(3)2/3y²+1/3y-2=0(4)0.4x²-0.8x=1
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![用配方法解方程(1)2x²-5x+3=0(2)4x²-3x+1(3)2/3y²+1/3y-2=0(4)0.4x²-0.8x=1](/uploads/image/z/997400-56-0.jpg?t=%E7%94%A8%E9%85%8D%E6%96%B9%E6%B3%95%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%881%EF%BC%892x%26%23178%3B-5x%2B3%3D0%EF%BC%882%EF%BC%894x%26%23178%3B-3x%2B1%EF%BC%883%EF%BC%892%2F3y%26%23178%3B%2B1%2F3y-2%3D0%EF%BC%884%EF%BC%890.4x%26%23178%3B-0.8x%3D1)
用配方法解方程(1)2x²-5x+3=0(2)4x²-3x+1(3)2/3y²+1/3y-2=0(4)0.4x²-0.8x=1
用配方法解方程(1)2x²-5x+3=0(2)4x²-3x+1(3)2/3y²+1/3y-2=0(4)0.4x²-0.8x=1
用配方法解方程(1)2x²-5x+3=0(2)4x²-3x+1(3)2/3y²+1/3y-2=0(4)0.4x²-0.8x=1
(1) (2x-3)*(x-1)=0
x=3/2或x=1
(2) (4x+1)*(x-1)
(3) (2/3y-1)*(y+2)=0
y=3/2或y=-2
(4) 解不出