If - 9 is a root of the equation \[\left| \,\begin{matrix} x & 3 & 7 \\ 2 & x & 2 \\ 7 & 6 & x \\ \end{matrix}\, \right|=0\]then the other two roots are [IIT 1983; MNR 1992; MP PET 1995; DCE 1997; UPSEAT 2001]

If - 9 is a root of the equation \[\left| \,\begin{matrix} x & 3

1.	If - 9 is a root of the equation \[\left\| \,\begin{matrix} x & 3 & 7 \\ 2 & x & 2 \\ 7 & 6 & x \\ \end{matrix}\, \right\|=0\]then the other two roots are [IIT 1983; MNR 1992; MP PET 1995; DCE 1997; UPSEAT 2001]
A.	2, 7
B.	- 2, 7
C.	2, -7
D.	- 2, -7
Answer» B. - 2, 7

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If - 9 is a root of the equation \[\left| \,\begin{matrix} x & 3 & 7 \\ 2 & x & 2 \\ 7 & 6 & x \\ \end{matrix}\, \right|=0\]then the other two roots are [IIT 1983; MNR 1992; MP PET 1995; DCE 1997; UPSEAT 2001]

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