Question

simplify (a+b+c)(a+b-c)​

Answer 1

Answer:

now u understand the problem and answer and using the property

Answer 2

Answer:

a²+b²-c2+2ab

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+ab+ab-ac+ac-bc+bc

a²+b²-c²+2ab