计算:(x-2y)(x2-4y2)(x+2y).
问题描述:
计算:(x-2y)(x2-4y2)(x+2y).
答
原式=(x-2y)(x+2y)(x2-4y2)
=(x2-4y2)(x2-4y2)
=x4-8x2y2+16y4.