计算:(x-y)²(x²+y²)²(x+y)²
2个回答
原式=[﹙x-y﹚﹙x+y﹚]²﹙x²+y²﹚²
=﹙x²-y²﹚²﹙x²+y²﹚²
=﹙x^4-y^4﹚²
=x^8-2x^4y^4+y^8.
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