Question

Solve the following questions.
Expand (5a+ 6b)2​

Answer 1

Answer:

25a^2 + 60ab + 36b^2

Step-by-step explanation:

Here we will use the identity

(a + b)^2 = a^2 + 2ab + b^2

a = 5a

b = 6b

(5a + 6b) = (5a)^2 + 2(5a * 6b) + (6b)^2

= 25a^2 + 2(30ab) + 36b^2

= 25a^2 + 60ab + 36b^2