计算﹙x+y﹚²﹙x-y﹚²+﹙2x-y﹚²﹙2x+y﹚²
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计算﹙x+y﹚²﹙x-y﹚²+﹙2x-y﹚²﹙2x+y﹚²
![计算﹙x+y﹚²﹙x-y﹚²+﹙2x-y﹚²﹙2x+y﹚²](/uploads/image/z/16276033-1-3.jpg?t=%E8%AE%A1%E7%AE%97%EF%B9%99x%EF%BC%8By%EF%B9%9A%26%23178%3B%EF%B9%99x%EF%BC%8Dy%EF%B9%9A%26%23178%3B%EF%BC%8B%EF%B9%992x%EF%BC%8Dy%EF%B9%9A%26%23178%3B%EF%B9%992x%EF%BC%8By%EF%B9%9A%26%23178%3B)
﹙x+y﹚²﹙x-y﹚²+﹙2x-y﹚²﹙2x+y﹚²
=(x²-y²)²+(4x²-y²)²
=x⁴-2x²y²+y⁴+16x⁴-8x²y²+y⁴
=17x⁴-10x²y²+2y⁴
如果不懂,祝学习愉快!
=(x²-y²)²+(4x²-y²)²
=x⁴-2x²y²+y⁴+16x⁴-8x²y²+y⁴
=17x⁴-10x²y²+2y⁴
如果不懂,祝学习愉快!
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