题目内容
直接写出因式分解的结果:x2y2-y2=______;3a2-6a+3=______.
x2y2-y2
=y2(x2-1)
=y2(x+1)(x-1);
3a2-6a+3
=3(a2-2a+1)
=3(a-1)2;
故答案为:y2(x+1)(x-1);3(a-1)2.
=y2(x2-1)
=y2(x+1)(x-1);
3a2-6a+3
=3(a2-2a+1)
=3(a-1)2;
故答案为:y2(x+1)(x-1);3(a-1)2.
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