Question

Please answer this question in attachment. Thanks!! ​

Answer 1

Step-by-step explanation:

Using first

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

Then cross multiplication

Using

(a+b+c)=a^2+b^2+c^2+2ab+2bc+2ac in numerator

And using

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

Then using

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

Solution is very lengthy we can't solve in A4 size paper so I give only way to solve it