作业帮已知单项式M、N满足等式:2x(M-x)=6x^2y^3+Nx^2,求M+N
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已知单项式M、N满足等式:2x(M-x)=6x^2y^3+Nx^2,求M+N
已知单项式M、N满足等式:2x(M-x)=6x^2y^3+Nx^2,求M+N
已知单项式M、N满足等式:2x(M-x)=6x^2y^3+Nx^2,求M+N
2mx-2x^2=6x^2y^3+nx^2
n=-2
m=3xy^3
2xM-2x²=6x²y³+Nx²
对应项相等
N=-2
M=3xy³
M+N=3xy³-2
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