Question

1.a(4a²+10b)
2.-9a(5a²+6b)
3.3pq(6p²+7pq+2q²)

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Answer 1

1. a (4a² + 10b)
= (a.4a²) + (a.10b)
= 4a³ + 10ab

2. -9a (5a² + 6b)
= (-9a.5a²) + (-9a.6b)
= -45a³ - 54ab

3. 3pq (6p² + 7pq + 2q²)
= (3pq.6p²) + (3pq.7pq) + (3pq.2q²)
= 18p³q + 21pq² + 6pq³


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