问题 填空题

(x-y)(x+y)(x2+y2)(x4+y4)(x8+y8)=______.

答案

(x-y)(x+y)(x2+y2)(x4+y4)(x8+y8),

=(x2-y2)(x2+y2)(x4+y4)(x8+y8),

=(x4-y4)(x4+y4)(x8+y8),

=(x8-y8)(x8+y8),

=x16-y16

故答案为:x16-y16

多选题
单项选择题