已知单项式mn满足3x(M-5x)=6x²y²+N,则M=(),N=()
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已知单项式mn满足3x(M-5x)=6x²y²+N,则M=(),N=()
已知单项式mn满足3x(M-5x)=6x²y²+N,则M=(),N=()
已知单项式mn满足3x(M-5x)=6x²y²+N,则M=(),N=()
3x(M-5x)=6x²y²+N
3Mx-15x²=6x²y²+N
M,N是单项式,
所以,3Mx=6x²y²,-15x²=N
则M=(2xy²),N=(-15x²)
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