1.

ab(x2 + y2)+ xy(a2 + b2) का गुणनखण्ड कीजिए

Answer»

ab(x2 + y2) + xy(a2 + b2)= abx2 + aby2 + xya2 + xyb2 

= abx2 + xya2 + aby2 + xyb2

= ax(bx + ay ) + by (ay + bx) = (ax + by)(bx + ay)



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