1.

(p + q + r)2 + x[p + q + r) – y(p + q + r) का गुणनखण्ड ज्ञात कीजिए

Answer»

(p + q + r)2 + x(p + q + r) – y(p + q + r) 

= (p + q + r)[p + q + r + x – y]



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