Question

p³ + q³+ r ³ + 3 pqr​

Answer 1

Answer:

p³+q³+r³-3pqr

=(p+q+r)(p²+q²+r²-(pq+qr+rp)

=(p+q+r){(p+q+r)²-3(pq+qr+rp)}

Step-by-step explanation:

Hope it's help you.

Answer 2

Answer:

$p^{2} +q^{2} +r^{2} -3pqr\\(p+q+r) (p^{2} +q^{2} +r^{2}-pq-qr-rp)$

I HOPE IT HELPS!!!