问题补充:
分解因式:(1)x2(x-y)+(y-x);(2)3ax2-6axy+3ay2.
答案:
解:(1)原式=(x-y)(x2-1),
=(x-y)(x-1)(x+1);
(2)原式=3a(x2-2xy+y2),
=3a(x-y)2.
故
时间:2022-10-03 03:54:47
分解因式:(1)x2(x-y)+(y-x);(2)3ax2-6axy+3ay2.
解:(1)原式=(x-y)(x2-1),
=(x-y)(x-1)(x+1);
(2)原式=3a(x2-2xy+y2),
=3a(x-y)2.
故