xy的平方-2xy+2y-4分解因式该怎么做

问题描述:

xy的平方-2xy+2y-4分解因式该怎么做

xy的平方-2xy+2y-4
=xy(y-2)+2(y-2)
=(y-2)(xy+2)


xy²-2xy+2y-4
=xy(x-2)+2(y-2)
=(y-2)(x+2)

xy^2-2xy+2y-4=xy(y-2)+2(y-2)=(y-2)(xy+2)

xy²-2xy+2y-4
原式=xy(y-2)+2(y-2)
=(xy+2)(y-2)

xy²-2xy+2y-4
原式=xy(y-2)+2(y-2)
=(xy+2)(y-2)