已知单项式M,N,满足3x（M-5x）=6xy,+N,则M= ,N=
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已知单项式M,N,满足3x（M-5x）=6xy,+N,则M=,N=已知单项式M,N,满足3x（M-5x）=6xy,+N,则M=,N=已知单项式M,N,满足3x（M-5x）=6xy,+N,则M=,N=M
已知单项式M,N,满足3x（M-5x）=6xy,+N,则M= ,N=
已知单项式M,N,满足3x（M-5x）=6xy,+N,则M= ,N=
已知单项式M,N,满足3x（M-5x）=6xy,+N,则M= ,N=
M=2y
N=-15x^2
已知单项式M,N,满足3x（M-5x）=6xy,+N,则M= ,N=
已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N
已知单项式M N满足3x(M-5x)=6x^2y^2 求M N
已知单项式M,N满足等式3x(M-5x)=6xy+N,则M= ,N=
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已知单项式M,N满足3x(M-5x）=6x²y+N,则M= N=已知单项式M,N满足3x(M-5x）=6x²y+N,则M= N=
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已知单项式m.n满足3x（m-5x）=6x的二次幂y的二次幂＋n,则mn等于