单项式m,n满足整式3x(m-5x)=6x2y3+n,求m,n
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单项式m,n满足整式3x(m-5x)=6x2y3+n,求m,n
单项式m,n满足整式3x(m-5x)=6x2y3+n,求m,n
单项式m,n满足整式3x(m-5x)=6x2y3+n,求m,n
去括号得,3mx-15x2=6x2y3+n 移项得,3mx-n=15x2+6x2y3 ,要想此式成立,又由题意知道m,n为单项式,得 3mx=6x2y3 -n=15x2 解之得 m=4y3 n=-15x2 这题关键你要理解单项式的性质.
LZ。。。6x2y3+n,是y的三次还是乘三啊。。。
条件不全,只有一个整式怎么求啊?
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