题目内容
因式分
(1)x3-x;
(2)3ax2-6axy+3ay2.
(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.
=x(x2-1),
=x(x-1)(x+1);
(2)3ax2-6axy+3ay2,
=3a(x2-2xy+y2),
=3a(x-y)2.
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