Question

multiply the following (a+b-c) (a-b+c)​

Answer 1

Answer:

a^2-b^2-c^2

Step-by-step explanation:

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

a2-b2-c2

Answer 2

Step-by-step explanation:

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

a²-ab+ac-b²+ab+bc-ca+cb-c²

a²-b²-c²+2cb