if `p+q+r=1 and pq+qr+rp=-1 and pqr=-1` find value of `p^3+q^3+r^3`

If p = 4,q = -3 and r = 2, find the value of : p^(3)+q^(3)-r^(3)-3pqr

If p = 3 , q = 2 and r = -1, find the values of (3p^(2)q+5r)/(2pq-3qr)

If p = -2, q = - 1 and r = 3, find the value of (i) p^(2) + q^(2) - r^(2) (ii) 2p^(2) - q^(2) + 3r^(2) (iii) p - q - r (iv) p^(3) + q^(3) + r^(3) + 3 pqr (v) 3p^(2) q + 5pq^(2) + 2 pqr (vi) p^(4) + q^(4) - r^(4)

If p = 3, q = 2 and r = -1, find the values of 2p^(2)+3a^(2)-r^(2)+2pr-5pqr

If p = 4, q= 3 and r = -2, find the values of : (p^(2)+q^(2)-r^(2))/(pq+qr-pr)

Suppose p, q, r are such that p+q=r and pqr = 30 , then what is the value of p^(3)+q^(3)-r^(3) ?

If p = 4,q = 3 and r = -2, find the values of : (3pq+2qr^(2))/(p+q-r)

If p:q=3:4 and q:r=8:9 then p:r is