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

If `a(p+q)^2+2bpq+c=0 and q(p+r)^2+2bpr+c=0` then (A) `qr=p^2 + c/a` (B) `qr=p^2 - c/a` (C) `q+r = 2(a+b)/a` (D) `q+r= -2(a+b)/(a)`

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