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If a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p...

If `a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p r+c=0 (a!=0)` , then which one is correct? a) `q r=p^2` b) `q r=p^2+c/a` c) none of these d) either a) or b)

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