Question

(a+b+c)×(a-b-c) find the product​

Answer 1

Answer:

Answer is -

a² - b² - c²

Step-by-step explanation:

(a+b+c)×(a-b-c)

= a² - ab - ac + ab - b² - bc + ac - bc - c²

= a² - b² - c²

hope it'll help you.

Answer 2

Answer:

a²- b²- c² + 2bc

Step-by-step explanation:

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

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

a² - ab - ac + ab - b² - bc + ac - bc - c²

a²- b² - c² + 2bc