计算:[(x+2y)(x-2y)+4(x-y)^2]/6x
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计算:[(x+2y)(x-2y)+4(x-y)^2]/6x计算:[(x+2y)(x-2y)+4(x-y)^2]/6x计算:[(x+2y)(x-2y)+4(x-y)^2]/6x原式=(x^2-4y^2+
计算:[(x+2y)(x-2y)+4(x-y)^2]/6x
计算:[(x+2y)(x-2y)+4(x-y)^2]/6x
计算:[(x+2y)(x-2y)+4(x-y)^2]/6x
原式=(x^2-4y^2+4x^2+4y^2-8xy)÷6x
=(5x^2-8xy)÷(6x)
=5/6*x-4/3y
(x²-4y²+4x²+4y²-8xy)/6x
(5x²-8xy)/6x
5/6x-4/3y
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