Question

plzz solve this using identity​

Answer 1

Answer:

0

Step-by-step explanation:

= (a+b)(a-b) = a^2-b^2

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

= (p^4-q^4)+(q^4-r^4)+(r^4-p^4)

= p^4-q^4+q^4-r^4+r^4-p^4

= 0