Question

expand using formula (a+b) = A2 + 2ab+b2 (5a+6b)​

Answer 1

Step-by-step explanation:

(5a)²+2(5a)(6b)+(6b)²

25a²+ 60ab + 36b²

Answer 2

Step-by-step explanation:

(5a + 6b)^2 using (a + b)^2

(5a)^2 + (2×5a×6b) + (6b)^2

25a^2 + 69ab + 36b^2

Hope it helps!!