Question

(a+b)² = a² +b²+ 2ab

Answer 1

hope this helps u

(a+b)² = a² +b²+ 2ab

(a+b)² =(a+b)(a+b)= a(a+b)+b(a+b)

                           = a²+ab+ab+b²

                           = a²+2ab+b²

Answer 2

Answer:

Step-by-step explanation:

(a+b)² = a² +b²+ 2ab

           or

(a+b)² = a² + 2ab +b²

both formulas are correct