y=2x-1/x+1怎么变形为y=2-3/x+1

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y=2x-1/x+1怎么变形为y=2-3/x+1y=2x-1/x+1怎么变形为y=2-3/x+1y=2x-1/x+1怎么变形为y=2-3/x+1y=(2x-1)/(x+1)=((2x+2)-3)/(x

y=2x-1/x+1怎么变形为y=2-3/x+1
y=2x-1/x+1怎么变形为y=2-3/x+1

y=2x-1/x+1怎么变形为y=2-3/x+1
y=(2x-1)/(x+1)
=((2x+2)-3)/(x+1
=2-3/(x+1)

y=(2x-1)/(x+1)
=(2x+2-2-1)/(x+1)
=2-3/(x+1)

y=2x-1/x+1=(2x+2)-3/x+1=2-3/x+1