计算(M-3N)³·(3N-M)^5=___
问题描述:
计算(M-3N)³·(3N-M)^5=___
同底数幂的乘法
答
(M-3N)³·(3N-M)^5
=[-(3N-M)³]·(3N-M)^5
=-(3N-M)³·(3N-M)^5
=-(3N-M)^(3+5)
=-(3N-M)^8