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(x^4-8x^2y^2+16y^4)/(2y+x)^2/(x-2y) 40
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(x^4-8x^2y^2+16y^4)/(2y+x)^2/(x-2y)
=(x²-4y²)²/(2y+x)^2/(x-2y)
=(x-2y)²(x+2y)²/(2y+x)^2/(x-2y)
=x-2y
=(x²-4y²)²/(2y+x)^2/(x-2y)
=(x-2y)²(x+2y)²/(2y+x)^2/(x-2y)
=x-2y
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能分的清楚一些么,看不懂?????
是这样么?(x^4-8x^2y^2+16y^4)/(2y+x)^2/(x-2y)
=(x²-4y²)²/(2y+x)^2/(x-2y)
=(x-2y)²(x+2y)²/(2y+x)^2/(x-2y)
=x-2y
是这样么?(x^4-8x^2y^2+16y^4)/(2y+x)^2/(x-2y)
=(x²-4y²)²/(2y+x)^2/(x-2y)
=(x-2y)²(x+2y)²/(2y+x)^2/(x-2y)
=x-2y
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展开全部
(x^4-8x^2y^2+16y^4)/(2y+x)^2/(x-2y)
=(x²-4y²)²/(2y+x)^2/(x-2y)
=(x-2y)²(x+2y)²/(2y+x)^2/(x-2y)
=x-2y
=(x²-4y²)²/(2y+x)^2/(x-2y)
=(x-2y)²(x+2y)²/(2y+x)^2/(x-2y)
=x-2y
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x-2y
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