1.-y^2+2y-1 2.-x^2y+2xy-y 因式分解,

081104072022-10-04 11:39:540条回答

1.-y^2+2y-1 2.-x^2y+2xy-y 因式分解,
1.-y^2+2y-1
2.-x^2y+2xy-y

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