1.5x^3-10x^2y+20xy^2和2x^3+16y^3
答案:H:x^2-2xy+4y^2
L:10x(x+2y)(x^2-2xy+4y^2)
解方程
2. 5x-2y+1=0
5x^2-y^2=1
答案:x=-1 y=-2
求詳細解答..
F4 MATH LCM HCF
2010-06-01 4:39 am
回答 (1)
2010-06-01 4:47 am
✔ 最佳答案
Please see the following:圖片參考：http://img717.imageshack.us/img717/703/33918802.png
2010-05-31 20:47:18 補充：
http://img717.imageshack.us/img717/703/33918802.png
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