Question

Factorise (2a+b) (10a+5b)

Answer 1

hey frnd
ur sol is in the pic

hope it helps

Answer 2

(2a+b) 5(2a+5b)
(2a+b) 5(2a+b)
Taking (2a+b) common
5(2a+b)
Using identity
5[(2a)^2(b)^2(2*2a*b)]
5[4a^2] [b^2] [4ab]
20a^2 5b^2 20ab.