Question

1. Expand .
(i) (5a + 6b)​

Answer 1

Answer:

Given

(5a+6b)

2

It is form (a+b)

2

=a

2

+2ab+b

2

(5a+6b)

2

=(5a)

2

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

2

=25a

2

+60ab+36b

2