Question

prove that (a+b)² = a² + 2ab + b²​

Answer 1

Answer:

(a+b)  

2

=(a+b)(a+b)

              =(a+b)(a)+(a+b)(b)

              =a  

2

+ab+ab+b  

2

 

              =a  

2

+2ab+b  

2

Step-by-step explanation: