�]�����Ѥ@��
2010-10-29 21:14
keroroEX
�]�����Ѥ@��
(a)�D.�]������a^3-1
=(a-1)(a^2+a+1)
(b)�D.�Ѧ�,�]������b^3+b^2-b-1
���ⰵ(b)�D
2010-10-29 21:18
chinlap
[quote]�쩫�� [i]keroroEX[/i] �� 2010-10-29 21:14 �o��
(a)�D.�]������a^3-1
=(a-1)(a^2+a+1)
(b)�D.�Ѧ�,�]������b^3+b^2-b-1
���ⰵ(b)�D [/quote]
b3+b2-b-1
=b3-1 + b(b-1)
=(b-1)(b2+b+1)+b(b-1)
=(b-1)(b2+b+1+b)
=(b-1)(b2+2b+1)
=(b-1)(b+1)(b+1)
2010-10-29 21:24
dyg
�^�_ #1 keroroEX �����l
b^3+b^2-b-1
=(b^3-1)+(b^2-b)
=(b-1)(b^2+b+1)+b(b-1)
=(b-1)(b^2+2b+1)
=(b-1)(b+1)^2
����part (a)����:
b^3+b^2-b-1
=(b+1)b^2-(b+1)
=(b+1)(b^2-1)
=(b-1)(b+1)^2
2010-10-29 21:24
dyg
�^�_ #3 dyg �����l
lag�Forz...
2010-10-29 21:25
keroroEX
�^�_ #2 chinlap �����l
�ڷQ���n�N�J(a)�D��
�Ҥl:�]������X^2-7X-198
=(X-18)(X+11)
�Ѧ�,�]������(2Y+3)^2-7(2Y+3)-198
�]X�O2y+3
(2Y+3)^2-7(2Y+3)-198=X^2-7X-198
((2Y+3)-18)((2Y+3)+11)=(X-18)(X+11)
2010-10-29 21:29
keroroEX
�^�_ #3 dyg �����l
����part (a)���ܤ��O
b^3+b^2-b-1
=b^2(b+1)+(-1)(b+1)
=(b^2-1)(b+1)
��?
2010-10-29 21:29
chinlap
[quote]�쩫�� [i]keroroEX[/i] �� 2010-10-29 21:25 �o��
�ڷQ���n�N�J(a)�D��
�Ҥl:�]������X^2-7X-198
=(X-18)(X+11)
�Ѧ�,�]������(2Y+3)^2-7(2Y+3)-198
�]X�O2y+3
(2Y+3)^2-7(2Y+3)-198=X^2-7X-198
... [/quote]
�A�Q���F�ƻ�?
2010-10-29 21:32
keroroEX
�^�_ #7 chinlap �����l
�n�n���ӨҤl�ݰ�
2010-10-29 21:33
dyg
�^�_ #6 keroroEX �����l
(b^2-1)�i�H�Afactorize��(b-1)(b+1)�Oorz
2010-10-29 21:35
dyg
�^�_ #8 keroroEX �����l
�ݦӮa�}�Na=b�o...orz
2010-10-29 21:40
keroroEX
�^�_ #10 dyg �����l
�����A�a���A
2010-10-29 21:44
dyg
�^�_ #11 keroroEX �����l
�I�ѧA�{��"�Ѧ�"�@�w�N���n�Y�]x=sth�O?......
2010-10-29 21:48
satzuna
[quote]�쩫�� [i]keroroEX[/i] �� 2010-10-29 21:32 �o��
�n�n���ӨҤl�ݰ� [/quote]
�L�����k�O�зǵ���,���H�N�}
2010-10-29 21:52
keroroEX
�^�_ #13 satzuna �����l
���Ǫ��o��sir�ܰ��즳����
2010-10-29 22:01
�����T��
�^�_ #14 keroroEX �����l
�u�n�L�S�������n��Ҥl����~����(ry
2010-10-29 22:16
satzuna
[quote]�쩫�� [i]�����T��[/i] �� 2010-10-29 22:01 �o��
�u�n�L�S�������n��Ҥl����~����(ry [/quote]
�p�G�s�o�]�����Ҥl�����{�����å븣�l�����D
2010-10-29 22:19
louislee2815
[quote]�쩫�� [i]�����T��[/i] �� 2010-10-29 22:01 �o��
�u�n�L�S�������n��Ҥl����~����(ry [/quote]
��ww
�ܻ��ӥD�Ѯv���������
2010-10-29 22:21
keroroEX
�^�_ #17 louislee2815 �����l
�Y�F��
^_^
2010-10-29 22:22
�����T��
�^�_ #16 satzuna �����l
�q�`��
�o���Ѯv���|�ۥH���o��
�஻�˦ۤv���ǥ� �άO�εw�W�X�V�L�h �M��N�p�U�B�z(!?)
(????
2010-10-29 22:24
kimwong3252000
[img]http://img338.imageshack.us/img338/2976/001uxv.jpg[/img]
2010-10-29 22:25
louislee2815
[quote]�쩫�� [i]keroroEX[/i] �� 2010-10-29 22:21 �o��
�Y�F��
^_^ [/quote]
[img]http://img.anyanother.com/data/28504.jpg[/img]
2010-10-29 22:27
keroroEX
�^�_ #21 louislee2815 �����l
�I��(��
#20
���Y�n��
2010-10-29 22:29
kimwong3252000
[quote]�쩫�� [i]keroroEX[/i] �� 2010-10-29 22:27 �o��
�I��(��
#20
���Y�n�� [/quote]
�g�I�X�ӥ�Q�I
2010-10-29 22:29
�����T��
�^�_ #22 keroroEX �����l
���¤���:�� �A�f���h�hxxoo �flift�Wxx�h �Voo�Ǫ���Cd���� ��f���h�hoooo...(ry
2010-10-29 22:29
louislee2815
[quote]�쩫�� [i]keroroEX[/i] �� 2010-10-29 22:27 �o��
�I��(��
#20
���Y�n�� [/quote]
[img]http://img.anyanother.com/data/22790.jpg[/img]
2010-10-29 22:30
kimwong3252000
��꦳��²���k...
���L�A�S��(a)orz
�`��ans ���ӫY (b-1)^2(b+1)
2010-10-29 22:32
keroroEX
�^�_ #24 �����T�� �����l
���ʴX�G��$(��
2010-10-29 22:33
louislee2815
[quote]�쩫�� [i]keroroEX[/i] �� 2010-10-29 22:32 �o��
���ʴX�G��$(�� [/quote]
[img]http://img.anyanother.com/data/22784.jpg[/img]
[img]http://img.anyanother.com/data/17136.jpg[/img]
[img]http://img.anyanother.com/data/17139.jpg[/img]
2010-10-29 22:50
satzuna
[quote]�쩫�� [i]kimwong3252000[/i] �� 2010-10-29 22:29 �o��
�g�I�X�ӥ�Q�I [/quote]
�ĤG����F(�u��)
2010-10-29 22:54
kimwong3252000
[quote]�쩫�� [i]satzuna[/i] �� 2010-10-29 22:50 �o��
�ĤG����F(�u��) [/quote]
�Y�{
+b^2 �g��-b^2
�n�Чr
�쩳���3���r
�u��factorize���N�norz
2010-10-29 22:55
louislee2815
[quote]�쩫�� [i]kimwong3252000[/i] �� 2010-10-29 22:54 �o��
�Y�{
+b^2 �g��-b^2
�n�Чr
�쩳���3���r
�u��factorize���N�norz [/quote]
[img]http://img.anyanother.com/data/17134.jpg[/img]
2010-10-29 22:55
kimwong3252000
[quote]�쩫�� [i]louislee2815[/i] �� 2010-10-29 22:55 �o��
[img]http://img.anyanother.com/data/17134.jpg[/img] [/quote]
�A������F�S��
2010-10-29 22:57
louislee2815
[quote]�쩫�� [i]kimwong3252000[/i] �� 2010-10-29 22:55 �o��
�A������F�S�� [/quote]
[img]http://img.anyanother.com/data/20683.jpg[/img]
2010-10-29 23:00
kimwong3252000
[quote]�쩫�� [i]satzuna[/i] �� 2010-10-29 22:58 �o��
���N�b�_��
2�ӧ�-1�ը�ĤG�Ӧ쨺�ɤ��N�X�Fb^3-1�F��?
�ĤT�B�w�g�ΤW�F3����{,�쩳���B�S����a��(�� [/quote]
�u�·�www
2010-10-29 23:01
kimwong3252000
[quote]�쩫�� [i]louislee2815[/i] �� 2010-10-29 22:57 �o��
[img]http://img.anyanother.com/data/20683.jpg[/img] [/quote]
�A�쩳���h�R����orz
2010-10-29 23:02
�����T��
�^�_ #35 kimwong3252000 �����l
�������n��!
2010-10-29 23:09
louislee2815
[quote]�쩫�� [i]kimwong3252000[/i] �� 2010-10-29 23:01 �o��
�A�쩳���h�R����orz [/quote]
[img]http://img.anyanother.com/data/23607.jpg[/img]
[quote]�쩫�� [i]�����T��[/i] �� 2010-10-29 23:02 �o��
�������n��! [/quote]
[img]http://img.anyanother.com/data/11807.jpg[/img]
2010-10-30 10:08
pkgpkg007
b^3+b^2-b-1
=b^2(b+1)-(b+1) �ֶ��k
=(b+1)(b^2-1)
��������L�n���Y��:D :D
2010-10-30 10:11
kimwong3252000
[quote]�쩫�� [i]pkgpkg007[/i] �� 2010-10-30 10:08 �o��
b^3+b^2-b-1
=b^2(b+1)-(b+1) �ֶ��k
=(b+1)(b^2-1)
��������L�n���Y��:D :D [/quote]
�n��hence
2010-10-30 10:15
kimwong3252000
�p��F-3-
[img]http://img143.imageshack.us/img143/8113/001rvy.jpg[/img]
��:
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