Question

please help me the one answer​

Answer 1

Step-by-step explanation:

(18a)2+36ab+9b square

it is means (a+b) square

hope you met your answer

Answer 2

Answer:

formula of (a+b)²= a²+2ab+b²

Step-by-step explanation:

(6a+3b)²=(6a)²+2×6a×3b+(3b)²

36a²+36ab+9b²