If \[a{{(p+q)}^{2}}+2bpq+c=0\,\,and\,\,a{{(p+r)}^{2}}+2bpr+c=0\,\,(a\ne 0),\] then

If \[a{{(p+q)}^{2}}+2bpq+c=0\,\,and\,\,a{{(p+r)}^{2}}+2bpr+c=0\,\,(a\

1.	If \[a{{(p+q)}^{2}}+2bpq+c=0\,\,and\,\,a{{(p+r)}^{2}}+2bpr+c=0\,\,(a\ne 0),\] then
A.	\[qr={{p}^{2}}\]
B.	\[qr={{p}^{2}}+\frac{c}{a}\]
C.	\[qr=-{{p}^{2}}\]
D.	none of these
Answer» C. \[qr=-{{p}^{2}}\]

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If \[a{{(p+q)}^{2}}+2bpq+c=0\,\,and\,\,a{{(p+r)}^{2}}+2bpr+c=0\,\,(a\ne 0),\] then

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