Question

expsand : (a+2/A)^2​

Answer 1

Answer:

a^2 + 4a +4/A^2

Step-by-step explanation:

FORMULA REQUIRED:

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

So we can write (a+2/A)^2 as

=(a+2 x 1/A)^2

=[(a+2)^2 x (1/A)^2]

=[a^2 +4 +4a x 1/A^2]

= a^2 + 4a +4/A^2

Here you have said two a's i.e. 'a' and 'A'

So i am amusing they are different if they are then you further expand this by putting a=A