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2011-10-13 22:38
kimwong3252000
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If a and B are the roots of the quadratic equation 4x*+7x-6=0 ,form a quadratic equation in x whose roots are a/(a-2) and B/(B-2)
a+B=-7/4
aB=-3/2
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2011-10-13 22:44
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2011-10-13 22:45
kimwong3252000
[quote]�쩫�� [i]���@��[/i] �� 2011-10-13 22:44 �o��
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2011-10-13 22:45
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2011-10-13 22:51
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[quote]�쩫�� [i]�ë¨ï¿½ï¿½[/i] �� 2011-10-13 22:31 �o��
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If a and B are the roots of the quadratic equation 4x*+7x-6=0 ,form a quadratic equation in x whose roots are a/(a-2) and B/(B-2)
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�\+�]=1.75=7/4
�\�]=-1.5=-3/2
�\/�\-2 + �]/�]-2 = [a(�]-2)+ �]/(�\-2)] / (�\-2)(�]-2)
= (�\�]-2�\+�\�]-2�]) / �\�]-2�]-2�\+4
= 2�\�]-2(�\+�]) / �\�]+4-2(�\+�])
(�\/�\-2)�D(�]/�]-2)= �\�] / �\�]+4-2(�\+�])
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2011-10-13 22:51
kimwong3252000
[quote]�쩫�� [i]�ë¨ï¿½ï¿½[/i] �� 2011-10-13 22:45 �o��
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a/(a-2) x B(B-2)
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�Y�N�A���e�p��Ja+B�PaB sub�Ja/(a-2) x B(B-2)�P�Ia/(a-2) + B(B-2)
�M��A�Nsimplify���Ja/(a-2) x B(B-2)�P�Ia/(a-2) + B(B-2) (�Y�Y�ܰ�a+B�PaB form)
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2011-10-13 22:54
akji47
[quote]�쩫�� [i]kimwong3252000[/i] �� 2011-10-13 22:51 �o��
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�M��ΩO��a+B�PaB�y���equation [/quote]
main maths�Od���Y��o�YBpart���� �ӥB�����|�Ҩ�Od
2011-10-13 22:54
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2011-10-13 22:55
kimwong3252000
[quote]�쩫�� [i]akji47[/i] �� 2011-10-13 22:54 �o��
main maths�Od���Y��o�YBpart���� �ӥB�����|�Ҩ�Od [/quote]
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2011-10-13 22:55
akji47
[quote]�쩫�� [i]kimwong3252000[/i] �� 2011-10-13 22:55 �o��
��ı�o�Od�ݲL�Y��Ysection A, �@�D�ݬJ�����L6�� [/quote]
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2011-10-13 23:03
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2011-10-13 23:04
kimwong3252000
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4x*-2x+1...
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2011-10-13 23:06
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2011-10-13 23:08
kimwong3252000
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2011-10-13 23:10
kimwong3252000
[quote]�쩫�� [i]akji47[/i] �� 2011-10-13 22:55 �o��
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2011-10-13 23:14
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2011-10-13 23:18
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2011-10-13 23:19
kimwong3252000
[quote]�쩫�� [i]�ë¨ï¿½ï¿½[/i] �� 2011-10-13 23:18 �o��
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2011-10-13 23:21
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2011-10-14 00:52
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2011-10-14 02:40
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[quote]�쩫�� [i]���@��[/i] �� 2011-10-13 09:41 PM �o��
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[quote]�쩫�� [i]donaldlau1995[/i] �� 2011-10-13 10:20 PM �o��
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[quote]�쩫�� [i]m11[/i] �� 2011-10-14 12:52 AM �o��
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2011-10-14 12:20
wilson29
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