问题
填空题
计算(2m+1)(4m2+1)(2m-1)=______.
答案
(2m+1)(4m2+1)(2m-1)
=(4m2+1)(2m+1)(2m-1)
=(4m2+1)(4m2-1)
=16m4-1.
故应填16m4-1.
计算(2m+1)(4m2+1)(2m-1)=______.
(2m+1)(4m2+1)(2m-1)
=(4m2+1)(2m+1)(2m-1)
=(4m2+1)(4m2-1)
=16m4-1.
故应填16m4-1.