填空:(1)3x^2+6xy/(x+y)(x+2y)=3x/()(1)3x²+6xy/(x+y)(x+2y)=3x/( )(2)3a/a-b = 6a²+6ab/( )
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填空:(1)3x^2+6xy/(x+y)(x+2y)=3x/()(1)3x²+6xy/(x+y)(x+2y)=3x/( )(2)3a/a-b = 6a²+6ab/( )
填空:(1)3x^2+6xy/(x+y)(x+2y)=3x/()
(1)3x²+6xy/(x+y)(x+2y)=3x/( )
(2)3a/a-b = 6a²+6ab/( )
填空:(1)3x^2+6xy/(x+y)(x+2y)=3x/()(1)3x²+6xy/(x+y)(x+2y)=3x/( )(2)3a/a-b = 6a²+6ab/( )
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填空:(1)3x^2+6xy/(x+y)(x+2y)=3x/()(1)3x²+6xy/(x+y)(x+2y)=3x/( )(2)3a/a-b = 6a²+6ab/( )
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