将2x²-4x+3进行变形后,其结果正确的是 A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2将2x²-4x+3进行变形后,其结果正确的是A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2 D.2(x+1)²+1

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将2x²-4x+3进行变形后,其结果正确的是 A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2将2x²-4x+3进行变形后,其结果正确的是A.2(x-2)²-1  B.2(x-1)²+1  C.2(x-1)²+2  D.2(x+1)²+1

将2x²-4x+3进行变形后,其结果正确的是 A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2将2x²-4x+3进行变形后,其结果正确的是A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2 D.2(x+1)²+1
将2x²-4x+3进行变形后,其结果正确的是 A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2
将2x²-4x+3进行变形后,其结果正确的是
A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2 D.2(x+1)²+1

将2x²-4x+3进行变形后,其结果正确的是 A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2将2x²-4x+3进行变形后,其结果正确的是A.2(x-2)²-1 B.2(x-1)²+1 C.2(x-1)²+2 D.2(x+1)²+1
2(x^2-2x)+3
=2(x^2-2x+1-1)+3
=2(x-1)^2-2+3
=2(x-1)^2+1
B

这个题目选B啊

2x²-4x+3
=2x²-4x+2+1
=2(x²-2x+1)+1
=2(x-1)²+1
选B