If the roots of the quardiatic eq. p(q-r)x2+q(r-p)x+r(p-q)=0 are equal,show that 1/p+1/r=2/q

If the roots of the quardiatic eq. p(q-r)x2+q(r-p)x+r(p-q)=0 are equal

1.	If the roots of the quardiatic eq. p(q-r)x2+q(r-p)x+r(p-q)=0 are equal,show that 1/p+1/r=2/q
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