5x²+5xy/x²-y²·(4x-4y)计算!急
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5x²+5xy/x²-y²·(4x-4y)计算!急
![5x²+5xy/x²-y²·(4x-4y)计算!急](/uploads/image/z/19896982-70-2.jpg?t=5x%26%23178%3B%2B5xy%2Fx%26%23178%3B-y%26%23178%3B%C2%B7%EF%BC%884x-4y%29%E8%AE%A1%E7%AE%97%21%E6%80%A5)
5x²+5xy/x²-y²·(4x-4y)
=5x(x+y)*4(x-y)/[(x-y)(x+y)]
=20x
=5x(x+y)*4(x-y)/[(x-y)(x+y)]
=20x
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