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(2x-3y)^2-(2x+3y)(2x-3y)因式分解(m+n)^2-4(m-n)^26x^2y(x-y)-2xy^2(x-y)+8xy(y-x)(x-y)^2-xy^2+X^2y
题目详情
(2x-3y)^2-(2x+3y)(2x-3y)因式分解
(m+n)^2-4(m-n)^2
6x^2y(x-y)-2xy^2(x-y)+8xy(y-x)
(x-y)^2-xy^2+X^2y
(m+n)^2-4(m-n)^2
6x^2y(x-y)-2xy^2(x-y)+8xy(y-x)
(x-y)^2-xy^2+X^2y
▼优质解答
答案和解析
(2x-3y)^2-(2x+3y)(2x-3y)=(2x-3y)(2x-3y-2x-3y)=-6y(2x-3y)
(m+n)^2-4(m-n)^2=(m+n)^2-[2(m-n)]^2 使用平方差公式:得:(3n-m)(3m-n)
6x^2y(x-y)-2xy^2(x-y)+8xy(y-x)提出xy(x-y)得:xy(x-y)(6x-2y-8)
(x-y)^2-xy^2+X^2y =(x-y)^2+xy(x-y)=(x-y)(x-y+xy)
(m+n)^2-4(m-n)^2=(m+n)^2-[2(m-n)]^2 使用平方差公式:得:(3n-m)(3m-n)
6x^2y(x-y)-2xy^2(x-y)+8xy(y-x)提出xy(x-y)得:xy(x-y)(6x-2y-8)
(x-y)^2-xy^2+X^2y =(x-y)^2+xy(x-y)=(x-y)(x-y+xy)
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