问题
解答题
因式分
(1)x3-x;
(2)3ax2-6axy+3ay2.
答案
(1)x3-x,
=x(x2-1),
=x(x-1)(x+1);
(2)3ax2-6axy+3ay2,
=3a(x2-2xy+y2),
=3a(x-y)2.
因式分
(1)x3-x;
(2)3ax2-6axy+3ay2.
(1)x3-x,
=x(x2-1),
=x(x-1)(x+1);
(2)3ax2-6axy+3ay2,
=3a(x2-2xy+y2),
=3a(x-y)2.