1. Expand the following: (-p+7q+1)² pls solve this question quickly and step by step ​

Answers 1

Answer:

-p² + 49q² + 1 - 14pq + 14q - 2p

Step-by-step explanation:

(-p+7q+1)²

= (-p)² + (7q)² + (1)² + 2 (-p) . 7q + 2. 7q. 1 + 2.1. ( -p)

= -p² + 49q² + 1 - 14pq + 14q - 2p

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