Question

factorise the following p²q-pr²-pq+r²​

Answer 1

Answer:

hope you find it helpful .

Answer 2

Step-by-step explanation:

$= {p}^{2} q - p {r}^{2} - pq + {r}^{2} \\ = {p}^{2} q - pq - p {r}^{2} + {r}^{2} \\ = pq(p - 1) - {r}^{2} (p - 1) \\ = (pq - 1)(pq - {r}^{2} )$