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8090 [49]
3 years ago
8

Factor completely.

Mathematics
1 answer:
Svetllana [295]3 years ago
6 0
To help explain how you get A for the answer:
work backwards
5(3a²+11a-4)
multiply everything by 5
5×3a²=15a²
5×11a=55a
5×-4=-20
15a²+55a-20
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