因式分解5(x-2)³(y-2)-3(2-y)²(2-y)
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因式分解5(x-2)³(y-2)-3(2-y)²(2-y)
因式分解5(x-2)³(y-2)-3(2-y)²(2-y)
因式分解5(x-2)³(y-2)-3(2-y)²(2-y)
5(x-2)³(y-2)-3(2-x)²(2-y)
=5(x-2)³(y-2)+3(x-2)²(y-2)
=(x-2)²(y-2)(5x-10+3)
=(x-2)²(y-2)(5x-7)