✔ 最佳答案
1. 8x^4-28x^3+16x^2-2x
=x(8x^3-28x^2+16x-2)
=2x(4x^3-14x^2+8x-1)
By長除
=2x(2x-1)(2x^2-6^x+1)
2013-01-02 15:05:29 補充:
你點可以咁做.....做死人咩T_T .....如果有第三條唔彩你TT_TT
2.x^4+2x^3-7x^2-8x+12
By長除
=(x-2)(x^3+4x^2+x-6)
=(x-2)(x-1)(x+2)(x+3)
2013-01-02 15:06:23 補充:
仲要得5分TTTTTTTTTTT-TTTTTTTTTTTT
2013-01-02 21:42:01 補充:
Sor......
By長除
=2x(2x-1)(2x^2-6x+1)