因式分解12ab(x-y)+6a(y-x)
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因式分解12ab(x-y)+6a(y-x)因式分解12ab(x-y)+6a(y-x)因式分解12ab(x-y)+6a(y-x)12ab(x-y)+6a(y-x)=2b*6a(x-y)-6a(x-y)=
因式分解12ab(x-y)+6a(y-x)
因式分解12ab(x-y)+6a(y-x)
因式分解12ab(x-y)+6a(y-x)
12ab(x-y)+6a(y-x)
=2b*6a(x-y)-6a(x-y)
=6a(x-y)(2b-1)
提取公因式:6a(x-y)
变为6a(x-y)(2b-1)
=(2b)(6a)(x-y)-(6a)(x-y)
=(6a)(x-y)(2b-1)
因式分解12ab(x-y)+6a(y-x)
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