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Veseljchak [2.6K]
3 years ago
8

Find the sum and choose the correct answer. 2n 3 + 4n 2 - 7 and -n 3 - 8n - 2

Mathematics
1 answer:
julsineya [31]3 years ago
7 0

Answer:

n³ + 4n² - 8n - 9

Step-by-step explanation:

(2n³ + 4n² - 7) + (-n³ - 8n - 2)

2n³ + 4n² - 7 - n³ - 8n - 2

2n³ - n³ + 4n²- 8n - 7 - 2

n³ + 4n² - 8n - 9

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