[16(a+b)^6(a-b)^5]÷[a(a+b)³(a-b)]²急需!求过程!还有一道题[(x+y)(x-y)-(x-y)²]÷2y
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[16(a+b)^6(a-b)^5]÷[a(a+b)³(a-b)]²急需!求过程!还有一道题[(x+y)(x-y)-(x-y)²]÷2y
[16(a+b)^6(a-b)^5]÷[a(a+b)³(a-b)]²
急需!求过程!
还有一道题
[(x+y)(x-y)-(x-y)²]÷2y
[16(a+b)^6(a-b)^5]÷[a(a+b)³(a-b)]²急需!求过程!还有一道题[(x+y)(x-y)-(x-y)²]÷2y
【参考答案】
1、 原式=[16(a+b)^6 (a-b)^5]÷[a^2 (a+b)^6 (a-b)^2]
=16(a-b)^3 /(a^2)
2、原式=[(x^2 -y^2 -x^2 -y^2 +2xy]/(2y)
=(-2y^2 +2xy)/(2y)
=-y+x
收起
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