Question

P2+q2+r2-pq-qr-or when p=3 p=-5 and r=4

Answer 1

Answer: The answer is 73

Step-by-step explanation: Firstly put the value in the following equation :

=> $p^{2} + q^{2} + r^{2} - pq-qr-rp$

=>  $3^{2} +(-5)^{2} +4^{2} - 3.-5- (-5).4 - 4.3$

=>  9 + 25 + 16 + 15 + 20 - 12

=> 73  Ans