(a-2m)³×(2m-n)+(n-2m)²×(2m-n)²求解
问题描述:
(a-2m)³×(2m-n)+(n-2m)²×(2m-n)²求解
答
(n-2m)³×(2m-n)+(n-2m)²×(2m-n)²
=-(n-2m)³×(n-2m)+(n-2m)²×(2m-n)²
=-(n-2m)^4+(n-2m)^4
=0