Factorize and simplify
(3x+y)³ +(3x+y)³
To factorize and simplify (3x+y)³ + (3x+y)³, first realize that both terms have a common factor of (3x+y)³. So, we can factor out (3x+y)³:
(3x+y)³ + (3x+y)³
= (3x+y)³ + (3x+y)³
= 2(3x+y)³
Therefore, the simplified and factorized form of (3x+y)³ + (3x+y)³ is 2(3x+y)³.