Question

Prove the eqation (a+b)2=a2+b2+2ab

Answer 1

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

Answer 2

hey friend!!!

=> (a+b)2 = (a+b) × (a+b)

=> (a+b)2 = a2+ab+ab+b2

=> (a+b)2 = a2+2ab+b2

=> (a+b)2 = a2+b2+2ab _______"proved"

hope it will help you..