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Question
Subtract: 4pq - 5q2 - 3p2 from 5p2 + 3q2 - pq
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Solution
4pq - 5q2 - 3p2 from 5p2 + 3q2 − pq
(5p2 + 3q2 - pq) - (4pq - 5q2 - 3p2)
= 5p2 + 3q2 - pq - 4pq + 5q2 + 3p2
= 5p2 + 3p2 + 3q2 + 5q2 - pq - 4pq
= 8p2 + 8q2 - 5pq
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