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Mars2501 [29]
2 years ago
7

1. 56 + (-56)2. -240 + 3703.-5.7+(-4.2)4.-15+(-8)​

Mathematics
1 answer:
Snezhnost [94]2 years ago
5 0

Answer:

1.) 0

2.) 130

3.) -9.9

4.) -23

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Step-by-step explanation:

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= 3(x^2+2x-2/3)
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