问题
解答题
分解因式:(1)ax2-2axy+ay2;(2)x4-1
答案
(1)ax2-2axy+ay2,
=a(x2-2xy+y2),
=a(x-y)2;
(2)x4-1,
=(x2+1)(x2-1),
=(x2+1)(x+1)(x-1).
分解因式:(1)ax2-2axy+ay2;(2)x4-1
(1)ax2-2axy+ay2,
=a(x2-2xy+y2),
=a(x-y)2;
(2)x4-1,
=(x2+1)(x2-1),
=(x2+1)(x+1)(x-1).