Question

Find the sum of 8pq +8 - 2qr and -7pq - 2 + 2qr.​

Answer 1

$8p + q + 8 - 2qr$

Answer 2

Answer:

$8pq + 8 - 2qr \: and \: - 7pq - 2 + 2qr \\ = 8pq + 8 - 2qr + ( - 7pq) - 2 + 2qr \\ = 8pq + 8 - 2qr - 7pq - 2 + 2qr \\ = 8pq - 7pq + 8 - 2 - 2qr + 2qr \\ = 1pq + 6$

$i \: hope \: it \: may \: help \: you$