Question

factorise (p-q)³+(q-r)³+(r-p)³

Answer 1

Hlo friend  Here is ur answer :  Let a = ( p - q)  b = ( q - r )   c = ( r - p )   a + b + c = p - q + q - r + r - p  ( All the terms are cut)   Then, a + b + c = 0  Identity : If a + b + c = 0 then a³ + b³ + c³ = 3abc   ( p - q )³ + ( q - r )³ + ( r - p )³  ➡️ 3 ( p - q ) ( q - r ) ( r - p )   HOPE IT HELPS YOU..