Question

expand the following(3a+4b)³​

Answer 1

Step-by-step explanation:

(3a+4b)^3

= (3a)^3+(4b)^3+3×(3a)^2×4b + 3×3a×(4b)^2

= 27a^3 + 64b^3+ 108a^2b+144ab^2

hope this will helpful.