Question

Simplify
: (a+b+c)x(a+b-c)​

Answer 1

Step-by-step explanation:

By using,

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

Answer 2

Answer:(a+b)^2-c2

Step-by-step explanation:

(a+b+c)(a+b-c)=a2+ab-ac+ba+b2-bc+ca+cb-c2 =a2+b2-c2+2ab=(a+b)^2-c2