Question

show that = (a+b)^2=a^2+2ab+b^2​

Answer 1

Answer:

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

Step-by-step explanation:

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

= a(a+b)+b(a+b)

= a^2 + ab +ba +b^2                       { ab + ba = 2ab }

= a^2 + 2ab + b^2

therefore, => [(a+b)^2 = a^2 + 2ab + b^2]