Question

If p=(-2) ,q= (-1) and r = (3) , find the value of the following.

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

(B) 2p^2 - q^2 +3r^2

(C) p - q - r

(D) p^3 + q^3 + r^3 + 3pqr​

Answer 1

Step-by-step explanation:

If p=(-2) ,q= (-1) and r = (3) , find the value of the following.

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

(B) 2p^2 - q^2 +3r^2

(C) p - q - r

(D) p^3 + q^3 + r^3 + 3pqr