Question

(a + b + c) x (a + b−c) + c²​

Answer 1

Answer:

$= (abc) \times (abc) + {c}^{2} \\ = {abc}^{2} \times {c}^{2}$

Hope it will help you

Answer 2

Answer:

• (a+b)^2 use formula a^2-b^2