Question

Factorise:

p²q - pr² - pq + r²​

Answer 1

Step-by-step explanation:

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

Answer 2

Answer:

p

2

q−pq+r

2

−pr

2

pq(p−1)+r

2

(1−p)

pq(p−1)−r

2

(p−1)

(p−1)(pq−r

2

)