Question

Please answer this fast...
(a+b+c)(a+b-c)

Answer 1

Answer:

your answer

please give like

Answer 2

Answer:

a2+b2-c2+2ab

Step-by-step explanation:

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

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

= a2+b2-c2+2ab