Question

(ii) (a + 2b) (a – 2b)

Answer 1

Answer:

(a+2b)(a-2b)=a^2-4b^2

hope it helps you....

Answer 2

Answer:

a^2 - 4b^2

Step-by-step explanation:

 (a + 2b) (a - 2b)

= a^2 - (2b)^2

= a^2 - 4b^2

by using (a + b) (a- b) = a^2 - b^2

hope this helps you..