maths問題?(from 2)

2006-10-14 3:39 am
分解為因式
5(x-2y)^3-10(x-2y)^2

6ab(a-2b)-8b^2(2b-a)

回答 (5)

2006-10-14 3:46 am
✔ 最佳答案
5(x-2y)^3-10(x-2y)^2 6ab(a-2b)-8b^2(2b-a)
=3

2006-10-13 19:47:31 補充:
5(x-2y)^3-10(x-2y)^2=5(x-2y)^2(x-2y-2)6ab(a-2b)-8b^2(2b-a) =6ab(a-2b)+ 8b^2(a-2b) =2b(a-2b)(3a + 4 b ) Hope this you may understand more
2006-10-14 3:44 am
[5(x-2y)^2][(x-2y)-2]


2b(a-2b)(3a+4b)
2006-10-14 3:44 am
5(x-2y)^3-10(x-2y)^2
=5(x-2y)^2(x-2y-2)


6ab(a-2b)-8b^2(2b-a)
=6ab(a-2b)+ 8b^2(a-2b)
=2b(a-2b)(3a + 4 b )

Hope this you may understand more
2006-10-14 3:42 am
^ 呢個係咩符號?
2006-10-14 3:41 am
咦!我識做喎^3^

2006-10-13 19:44:48 補充:
h3022874 係衰人,大家小心d,佢係德國球迷狂!


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