Question

expand (3x + 4y)³
plzz answer my question ​

Answer 1

1. (3x + 4y) ^3
2. 3x^3 + 4y^3 + 3 (3x) ( 4y) (3x + 4y)
3. 27x^3 + 64y^3 +36 xy ( 3x + 4y)
4. 27x^3 + 64y^3 + 108x^2y +144 xy^2