Question

(a+b+c) (a-b-c) simplify ​

Answer 1

Answer:

a^2 - b^2-  c^2 - 2bc

Step-by-step explanation:

(a+b+c) (a-b-c)

= a^2 - ab - ac + ab - b^2 - bc + ac - bc - c^2

= a^2 - b^2-  c^2 - 2bc

Answer 2

Answer:

a^2 - b^2 - 2bc - c^2

Step-by-step explanation:

Given,

(a+b+c)(a-b-c)

=a(a-b-c) + b(a-b-c) + c(a-b-c)

=a^2-ab-ac + {ab-b^2-bc} + {ac-bc-c^2}

=a^2-ab-ac + ab-b^2-bc + ac-bc-c^2

=a^2 - b^2 - 2bc - c^2

That is the answer..

Hope it helps you..

Please mark me as the Brainliest and follow me..