x2-4x+4=(3-2x)2
x^2-4x+4=9-12x+4x^2
3x^2-8x+5=0
(x-1)(3x-5)=0
x1=1,x2=5/3
x2-4x+4=(3-2x)2任意方法
x2-4x+4=(3-2x)2任意方法
數(shù)學(xué)人氣:686 ℃時(shí)間:2020-06-18 08:56:42
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