If the equation \( a x^{2}+b x+c=0 \) and \( c x^{2}+b x+a=0 \)
\( ...
If the equation \( a x^{2}+b x+c=0 \) and \( c x^{2}+b x+a=0 \)
\( \mathrm{P} \) \( (a \neq c \neq 0) \) have a negative common root, then the
W value of \( (a-b+c) \) is-
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