分式约分
(1)a²+ab/a²b=()/ab(2)9mn²/36n³=m/()(3)x²+2xy+y²/x²...
(1)a²+ab/a²b=()/ab
(2)9mn²/36n³=m/()
(3)x²+2xy+y²/x²-y²=x+y/()
化简下列分式(1)18nb/24a³b (2)m²-n²/m²+2mn+n² (3)m²-3m/9-m²
(4)x²-4/x²-4x+4 展开
(2)9mn²/36n³=m/()
(3)x²+2xy+y²/x²-y²=x+y/()
化简下列分式(1)18nb/24a³b (2)m²-n²/m²+2mn+n² (3)m²-3m/9-m²
(4)x²-4/x²-4x+4 展开
1个回答
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(1)a²+ab/a²b=(a+b)/ab
(2)9mn²/36n³=m/(4n)
(3)x²+2xy+y²/x²-y²=x+y/(x-y)
化简下列分式
(1)18nb/24a³b =3n/4a³
(2)m²-n²/m²+2mn+n² =(m+n)(m-n)/(m+n)² =(m-n)/(m+n)
(3)m²-3m/9-m²=m(m-3)/(3+m)(3-m)=-m/(3+m)
(4)x²-4/x²-4x+4=(x+2)(x-2)/(x-2)² =(x+2)/(x-2)
希望采纳!!
(2)9mn²/36n³=m/(4n)
(3)x²+2xy+y²/x²-y²=x+y/(x-y)
化简下列分式
(1)18nb/24a³b =3n/4a³
(2)m²-n²/m²+2mn+n² =(m+n)(m-n)/(m+n)² =(m-n)/(m+n)
(3)m²-3m/9-m²=m(m-3)/(3+m)(3-m)=-m/(3+m)
(4)x²-4/x²-4x+4=(x+2)(x-2)/(x-2)² =(x+2)/(x-2)
希望采纳!!
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