Question

p²q - pr² - pq + r²

Please, help me out !!​

Answer 1

Answer:

p2q-pr2 -pq+r2

=( p2q-pq) + ( r2-pr2) [grouping the expression]

=pq (p-1)+r2 (1-p)

= pq (p-1)-r2 (p-1)[(1-p)=-p-1)

=(pq-r2) ( p-1) [ talking (p-1) as the common factor ]

Step-by-step explanation:

hope it helps you.. pls follow me