问题
解答题
(x2-1)2-(x2-1)(x+5)
答案
(x2-1)2-(x2-1)(x+5),
=(x2-1)(x2-1-x-5),
=(x+1)(x-1)(x2-x-6),
=(x+1)(x-1)(x+2)(x-3).
(x2-1)2-(x2-1)(x+5)
(x2-1)2-(x2-1)(x+5),
=(x2-1)(x2-1-x-5),
=(x+1)(x-1)(x2-x-6),
=(x+1)(x-1)(x+2)(x-3).