Find `(x+2p)/(x-2p) +(x+2q)/(x-2q),"when x" = (4pq)/(p+q)`.

Find `(x+2p)/(x-2p) +(x+2q)/(x-2q),"when x" = (4pq)/(p+q)`.
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Find `(x+2p)/(x-2p) +(x+2q)/(x-2q),"when x" = (4pq)/(p+q)`.
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