Question

Simplify: (a + b + c)(a + b - c)​

Answer 1

Answer:

(a+b+c)(a+b−c)

=a

2

+ab−ac+ab+b

2

−bc+ac+bc−c

2

=a

2

+b

2

+c

2

+ab+ab−ac+ac−bc+bc

=

a

2

+b

2

−c

2

+2ab

Step-by-step explanation:

hope it will help you

Answer 2

Step-by-step explanation:

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

(a+b) ^2 - c^2

a^2 +2ab+b^2 -c^2