分解因式:(1)x4-y4(2)x3-6x2+9x

分解因式:(1)x4-y4(2)x3-6x2+9x.
2024-11-22 17:16:15
推荐回答(1个)
回答1:

(1)原式=(x2+y2)(x2-y2)=(x2+y2)(x+y)(x-y);

(2)原式=x(x2-6x+9)=x(x-3)2