Question

Multiply together:
1. a+b+c, a +b-c.​

Answer 1

Answer:

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

(a+b)^2 -c^2

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

Step-by-step explanation:

here is ur answer

hope it helps you

Answer 2

Answer:

a²+b²-c²+ab+ba+ca+cb-ac-bc

Step-by-step explanation:

step 1: we multiple these two no.,

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

=a² + ab -ac + ba + b² - bc + ca + cb - c²

step 2 : rearrange it

=a²+b²-c²+ab+ba+ca+cb-ac-bc