Question

(p+q-r)²-(p-q+r)² factorise this question​

Answer 1

here is your answer....

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Answer 2

Answer:

(p+q-r)2-(p-q+r)2

(p+q-r+p-q+r) (p+q-r-p+q-r)

(2p) (2q-2r)

4pq-4pr

4p(q-r)