Find the difference of 2pq + rs - pr - 2qs from pq – 2rs + 2pr + qs
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7
Answer:
‐pq‐3rs+3pr+3qs......
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Answer:
=. (pq-2rs+2pr+qs)-(2pq+rs-pr-2qs)
= pq-2rs+2pr+qs-2pq-rs+pr+2qs
= -pq-3rs+3pr+3qs
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