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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

a/(a-2) x B(B-2)=�Ӫ��i�o��

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2011-10-13 22:44 ���@��

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2011-10-13 22:45 kimwong3252000
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={)^2-2�\�]]-�\�]}�D{)^2-2�\�]]^2+)^2-2�\�]](�\�])+(�\�])^2}

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2011-10-13 22:45 �먭��
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a/(a-2) x B(B-2)
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4x*+7x-6=0��?
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2011-10-13 22:51 ���@��
[quote]�쩫�� [i]�먭��[/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)
(�ڤ�4= =,�������M2�F) [/quote]
�\+�]=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]�먭��[/i] �� 2011-10-13 22:45 �o��
�Y�Y�N
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)

�M��ΩO��a+B�PaB�y���equation

2011-10-13 22:54 akji47
[quote]�쩫�� [i]kimwong3252000[/i] �� 2011-10-13 22:51 �o��

���Y...

�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)

�M��ΩO��a+B�PaB�y���equation [/quote]
main maths�Od���Y��o�YBpart����    �ӥB�����|�Ҩ�Od

2011-10-13 22:54 �먭��
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4x*-2x+1...
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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]
��ı�o�Od�ݲL�Y��Ysection A, �@�D�ݬJ�����L6��

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 �먭��
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2011-10-13 23:04 kimwong3252000
[quote]�쩫�� [i]�먭��[/i] �� 2011-10-13 22:54 �o��
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4x*-2x+1...
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2011-10-13 23:06 �먭��
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2011-10-13 23:08 kimwong3252000
[quote]�쩫�� [i]�먭��[/i] �� 2011-10-13 23:06 �o��
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2011-10-13 23:10 kimwong3252000
[quote]�쩫�� [i]akji47[/i] �� 2011-10-13 22:55 �o��

�i���Y��section B [/quote]
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2011-10-13 23:14 ���@��
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2011-10-13 23:18 �먭��
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2011-10-13 23:19 kimwong3252000
[quote]�쩫�� [i]�먭��[/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 m11
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2011-10-14 02:40 UniCorn
[quote]�쩫�� [i]���@��[/i] �� 2011-10-13 09:41 PM �o��
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+1, MI �O�e����

[quote]�쩫�� [i]donaldlau1995[/i] �� 2011-10-13 10:20 PM �o��
dydx�̩��r! [/quote]
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differential equation (ry

[quote]�쩫�� [i]m11[/i] �� 2011-10-14 12:52 AM �o��
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2011-10-14 12:20 wilson29
F.2 math so ��=,=:'(

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�d�ݧ��㪩��: math���D


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