因式分解:4a(x-y)2-2b(y-x)2 = = = = =
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因式分解:4a(x-y)2-2b(y-x)2=====因式分解:4a(x-y)2-2b(y-x)2=====因式分解:4a(x-y)2-2b(y-x)2=====4a(x-y)²-2b(y-
因式分解:4a(x-y)2-2b(y-x)2 = = = = =
因式分解:4a(x-y)2-2b(y-x)2 = = = = =
因式分解:4a(x-y)2-2b(y-x)2 = = = = =
4a(x-y)²-2b(y-x)²
=4a(x-y)²-2b(x-y)²
=2(2a-b)(x-y)²
4a(x-y)2-2b(y-x)2
=4a(x-y)2-2b(x-y)2
=2(x-y)2(2a-b)
因式分4a(x-y)^2-2b(y-x)^2=(4a-2b)(x-y)^2 =2(2a-b)(x-y)^2
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