Question

factorise the following p^2q - pr^2 - pq + r^2
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Answer 1

Step-by-step explanation:

p²q-pr²-pq+r²

=p(pq-r²)-(pq-r²)

=(p-1)(pq-r²)

Answer 2

Step-by-step explanation:

$p²q - pr² - pq + r²$

$p²q - pq - pr² + r²$

$pq(p - 1) - r²(p - 1)$

$(pq - r²)(p - 1)$