约分 2bc/ac 【x+y】y/xy^2 x^2+xy/[x+y]^2 x^2-y^2/[x-y]^2
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约分 2bc/ac 【x+y】y/xy^2 x^2+xy/[x+y]^2 x^2-y^2/[x-y]^2
5x/25x^2 9ab^2+6abc/3a^2b 9a^2+6ab+b^2/3a+b x^2-36/2x+12
5x/25x^2 9ab^2+6abc/3a^2b 9a^2+6ab+b^2/3a+b x^2-36/2x+12
![约分 2bc/ac 【x+y】y/xy^2 x^2+xy/[x+y]^2 x^2-y^2/[x-y]^2](/uploads/image/z/19023717-21-7.jpg?t=%E7%BA%A6%E5%88%86+2bc%2Fac+%E3%80%90x%2By%E3%80%91y%2Fxy%5E2+x%5E2%2Bxy%2F%5Bx%2By%5D%5E2+x%5E2-y%5E2%2F%5Bx-y%5D%5E2)
2b/a
(x+y)/xy
x/(x+y)
(x+y)/(x-y)
1/5x
(3b+2c)/a
3a+b
(x-6)/2
(x+y)/xy
x/(x+y)
(x+y)/(x-y)
1/5x
(3b+2c)/a
3a+b
(x-6)/2
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