问题
填空题
计算:(2a-b)(4a2+2ab+b2)=______.
答案
(2a-b)(4a2+2ab+b2)
=8a3+4a2b+2ab2-4a2b-2ab2-b3
=8a3-b3.
故答案为:8a3-b3.
计算:(2a-b)(4a2+2ab+b2)=______.
(2a-b)(4a2+2ab+b2)
=8a3+4a2b+2ab2-4a2b-2ab2-b3
=8a3-b3.
故答案为:8a3-b3.