Question

Solve algebraic expression:-
(a + b)² - a² + b²


Hope that you all will cooperate! ​

Answer 1

Answer:

-2ab-2a^2

Step-by-step explanation:

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

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

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

= -2ab-2a^2

Answer 2

Step-by-step explanation:

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

apply formula in given question

a^2 + 2 × a × b + b^2 - a^2 + b^2

+a2 and -a2 we are cancelling and adding b^2 with b^2 so result will be

2 × a × b + 2 b^2

Taking 2 b common then

2 b ( a + b)