Question

3pq + 2 pr - 4qr; - pq + 2qr + pr and 4pq - 3pr + 2qr​

Answer 1

Answer:

6pq + pr + qr

Step-by-step explanation:

3pq + 2pr -4 qr

-pq + pr + 2qr

4pq - 3pr + 2qr

_____________

6pq + pr + qr

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Answer 2

Answer:

6 pq

Step-by-step explanation:

1:3pq+ 2pr- 4 qr-pq+2qr+pr

+4pq-3pr+2qr

solution:

3pq-pq+4pq,+2pr+pr-3pr,+2qr-4qr+2qr

substitute

6 pq

Answer:6pq

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