Divide and Simply?
回答 (5)
2008-07-07 7:18 am
✔ 最佳答案
f(x-5)/(x-3)(x+2)
2008-07-07 3:44 pm
(x^2 - 3x - 10)/(x^2 - 9) ÷ (x^2 + 4x + 4)/(x + 3)
= [(x + 2)(x - 5)/(x + 3)(x - 3)][(x + 3)/(x + 2)(x + 2)] (cancel out x + 2 , x + 3)
= [(x - 5)/(x - 3)][1/(x + 2)]
= (x - 5)/(x - 3)(x + 2)
= [(x + 2)(x - 5)/(x + 3)(x - 3)][(x + 3)/(x + 2)(x + 2)] (cancel out x + 2 , x + 3)
= [(x - 5)/(x - 3)][1/(x + 2)]
= (x - 5)/(x - 3)(x + 2)
2008-07-07 3:12 pm
(x - 5)(x + 2)(x + 3)
---------------------------------
(x - 3)(x + 3)(x + 2)(x + 2)
(x - 5)
-----------------
(x - 3)(x + 2)
---------------------------------
(x - 3)(x + 3)(x + 2)(x + 2)
(x - 5)
-----------------
(x - 3)(x + 2)
2008-07-07 2:35 pm
5
/
-3X^2+4X+6
/
-3X^2+4X+6
2008-07-07 2:33 pm
(x-5)/(x-3)(x+2)
收錄日期: 2021-05-01 10:47:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080706231305AAyzwZd