已知单项式M、N满足3x(M+6x²)=18xy+N,求M和N
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已知单项式M、N满足3x(M+6x²)=18xy+N,求M和N
已知单项式M、N满足3x(M+6x²)=18xy+N,求M和N
已知单项式M、N满足3x(M+6x²)=18xy+N,求M和N
答案:M=6y;N=18x^3
将等号左边的3x先分配到括号内得到:3xM+18x^3:然后原式变为:3xM+18x^3=18xy+N;然后通过观察:18xy=3xM;18x^3=N,所以M=6y;N=18x^3.
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