分式加减法计算⑴ 5/6xy - 2/3xz + 3/4xyz ⑵ 【(x^5-x³y²)/(y^4)】·(1/x²y²)³ - (x+y)/y³
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![分式加减法计算⑴ 5/6xy - 2/3xz + 3/4xyz ⑵ 【(x^5-x³y²)/(y^4)】·(1/x²y²)³ - (x+y)/y³](/uploads/image/z/651885-69-5.jpg?t=%E5%88%86%E5%BC%8F%E5%8A%A0%E5%87%8F%E6%B3%95%E8%AE%A1%E7%AE%97%E2%91%B4+5%EF%BC%8F6xy+%EF%BC%8D+2%EF%BC%8F3xz+%EF%BC%8B+3%EF%BC%8F4xyz+%E2%91%B5+%E3%80%90%EF%BC%88x%5E5%EF%BC%8Dx%26sup3%3By%26sup2%3B%EF%BC%89%EF%BC%8F%28y%5E4%29%E3%80%91%C2%B7%EF%BC%881%EF%BC%8Fx%26sup2%3By%26sup2%3B%EF%BC%89%26sup3%3B+%EF%BC%8D+%EF%BC%88x%EF%BC%8By%EF%BC%89%EF%BC%8Fy%26sup3%3B)
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分式加减法计算⑴ 5/6xy - 2/3xz + 3/4xyz ⑵ 【(x^5-x³y²)/(y^4)】·(1/x²y²)³ - (x+y)/y³
分式加减法计算
⑴
5/6xy - 2/3xz + 3/4xyz
⑵
【(x^5-x³y²)/(y^4)】·(1/x²y²)³ - (x+y)/y³
分式加减法计算⑴ 5/6xy - 2/3xz + 3/4xyz ⑵ 【(x^5-x³y²)/(y^4)】·(1/x²y²)³ - (x+y)/y³
1)5/6xy - 2/3xz + 3/4xyz
=10z/(12xyz)-8y/(12xyz)+9/(12xyz)
=(10z-8y+9)/(12xyz)
2)【(x^5-x³y²)/(y^4)】·(1/x²y²)³ - (x+y)/y³
=(x^5-x^3y^2)/(y^4x^6y^6)-(x+y)/y^3
=(x^2-y^2)/(x^3y^10)-(x+y)/y^3
=(x+y)/y^3*((x-y)/(x^3y^7))
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分式加减法计算⑴ 5/6xy - 2/3xz + 3/4xyz ⑵ 【(x^5-x³y²)/(y^4)】·(1/x²y²)³ - (x+y)/y³
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