Question

simplify the following ​

Answer 1

Answer:

0

Step-by-step explanation:

(p + q) (p - q) + (p + r)(r - p) - ( r^2 - q^2)

=> p^2 - pq + qp - q^2 + pr + r^2 - p^2 - pr - r^2 + q^2

=> 0

By Aaditya Singh