Answer: 3p²-5pq+7q² (+) ?p²+?pq+?q² —————— 9p²-9pq+3q² ?p²+?pq+?q² = 9p²-9pq+3q² – 3p²-5pq+7q² = 6p²-4pq-4q² Reply
Answer:
3p²-5pq+7q²
(+) ?p²+?pq+?q²
——————
9p²-9pq+3q²
?p²+?pq+?q² = 9p²-9pq+3q² – 3p²-5pq+7q²
= 6p²-4pq-4q²
Step-by-step explanation:
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