plz solve.........now
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Hey Mate!!
pq(r² + s²) - p²rs - q²rs
→ pqr² + pqs² - p²rs - q²rs
→ pqr² - p²rs + pqs² - q²rs
→ pr(qr - ps) + qs(ps - qr)
→ pr(qr - ps) - qs(qr - ps)
→ (pr - qs)(qr - ps)
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Answer:
pqr² + pqs²- p²rs- q²rs
pqr²-q²rs+pqs²-p²rs
qr(pr-qs)-ps(pr-qs)
(qr-ps)(pr-qs)
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