Question

solve using identities(9pq+9) (9pq-9)​

Answer 1

Answer:

Check the attachment:)

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Answer 2

Step-by-step explanation:

(a-b)²=(a+b)(a-b)

(9pq+9)(9pq-9)=9pq-9

answer=9pq-2×9pq×9+9

9pq-162pq+9

-153pq+9.

I hope it helps to you Thanks......