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From the sum of 3a²-a-3 and 2a-9,subtract a²-3a-7
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From the sum of 3a²-a-3 and 2a-9,subtract a²-3a-7
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Sep 2, 2019
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From the sum of 3a²-a-3 and 2a-9,subtract a²-3a-7
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Haris Krajina
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the sum of 3a²-a-3 and 2a-9 is 3a²+a-12
3a²+a-12 - (a²-3a-7) = 3a²+a-12 - a² + 3a + 7 =
2a² +4a - 5
Luan Kevin Ferreira
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Sep 7, 2019
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Luan Kevin Ferreira
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