(2x-1)(x+½)(x²+¼)要过程要答案
问题描述:
(2x-1)(x+½)(x²+¼)要过程要答案
答
(2x-1)(x+½)(x²+¼)
=2(x-1/2)(x+½)(x²+¼)
=2(x²-1/4)(x²+¼)
=2(x⁴-1/16)
=2x⁴-1/8