急.(9 21:39:3)
问题描述:
急.(9 21:39:3)
(m2+1/10)(m2+1/4)(m+1/2)(m-1/2)
答
=(m2+1/10)(m2+1/4)(m2-1/4)
=(m2+1/10)(m4-1/16)
=m6-1/16m2+1/10m4-1/160
=m6+1/10m4-1/16m2-1/160