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Alona [7]
3 years ago
12

1. 5(2a-b)

Mathematics
1 answer:
Andreyy893 years ago
7 0

Answer:

1. 10a - 5b

2. 19x + 8y

3. a2 + 7a + 12

4. 10x2 + 17xy + 3y2

5. m2 - n2

6. p2 - 4pq + 4q2

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