作业帮求因式分解.
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求因式分解.
求因式分解.
求因式分解.
x²-3xy+2y²-3x+4y+2
=(x-2y)(x-y)-x-2x+2y+2y+2
=(x-2y)(x-y)-x+2y+2y-2x+2
=(x-2y)(x-y)-(x-2y)-2(x-y-1)
=(x-2y)(x-y-1)-2(x-y-1)
=(x-y-1)(x-2y-2)
(x-y-1)(x-2y-2)
x²-3xy+2y²-3x+4y+2
=(x-y)(x-2y)-2x+2y-x+2y+2
=(x-y)(x-2y)-2(x-y)-(x-2y-2)
=(x-y)(x-2y-2)-(x-2y-2)
=(x-2y-2)(x-y-1)
原式=(x-2y)(x-y)-2(x-y)-x+2y+2
=(x-2y-2)(x-y)-(x-2y-2)
=(x-2y-2)(x-y-1)
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原式=(x-2y)(x-y)-2(x-y)-x+2y+2
=(x-2y-2)(x-y)-(x-2y-2)
=(x-2y-2)(x-y-1)
请好评
如果你认可我的回答，敬请及时采纳，
~如果你认可我的回答，请及时点击【采纳为满意回答】按钮~
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