x的五次方-x ³=x³﹙x²-1﹚=x³﹙x+1﹚﹙x-1﹚
16x的四次方-8x ² y ² +y的四次方=﹙4x²-y²﹚²=﹙2x+y﹚²﹙2x-y﹚²
x ³ -7x ² +12x=x﹙x²-7x+12﹚=x﹙x-3﹚﹙x-4﹚
x ³ -4xy ² +x ² -4y ² =x﹙x²-4y²﹚+﹙x²-4y²﹚=﹙x+1﹚﹙x+2y﹚﹙x-2y﹚
9x ² -6xy+y ² -100= ﹙2x-y﹚²-10²=﹙2x-y+10﹚﹙2x-y-10﹚
(2a-b)² -4a+2b-8=(2a-b)²-2﹙2a-b﹚-8=﹙2a-b-4﹚﹙2a-b+2﹚
1、(x-1)(x+1) x^3
2、(2x-y)^2 × (2x+y)^2
3、x(x-4)(x-3)
4、(x-2y)(x+2y)(x+1)
5、(3x-y-10)(3x-y+10)
6、﹙2a-b-4﹚﹙2a-b+2﹚