Question

4pq-5p²+49²from 5p²+39²-pq​

Answer 1

Answer:

$5 {p}^{2} + {39}^{2} - pq - (4pq - 5 {p}^{2} + 4 {9}^{2})$

⇒5p²+39²-pq-4pq+5p²-49²

⇒10p²-10²-5pq

Therefore, The answer is 10p²-10²-5pq.

Answer 2

5p

2

+39

2

−pq−(4pq−5p

2

+49

2

)

⇒5p²+39²-pq-4pq+5p²-49²

⇒10p²-10²-5pq

Therefore, The answer is 10p²-10²-5pq.