Question

hey guys plzz answer fast step by step explanation needed ​

Answer 1

Step-by-step explanation:

option c is the answer. hope it will help you

Answer 2

$\star\sf\ \ \ (a+b)^3-(a-b)^3\\ \\ \\ \underline{\scriptsize{\sf\ \ \ \ (a+b)^3= a^3+b^3+3a^2b+3ab^2\ \ \ }}\\ \\ \\ \underline{\scriptsize{\sf\ \ \ \ (a-b)^3= a^3-b^3-3a^2b+3ab^2\ \ \ }}\\ \\ \\ \dashrightarrow\sf \ a^3+b^3+3a^3b+3ab^2-\Big(a^3-b^3-3a^2b+3ab^2\Big)\\ \\ \\ \dashrightarrow\sf \cancel{a^3}+b^3+3a^2b+\cancel{3ab^2}-\cancel{a^3}+b^3+3a^2b-\cancel{3ab^2}\\ \\ \\ \dashrightarrow\sf\ 2b^3+6a^2b\\ \\ \\ \dashrightarrow\underline{\boxed{\purple{\sf\ \ 2b(3a^2+b^2)}}}\ \ \ \sf\ Option\ (c)$