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

2n 3 + 4n 2 - 7 and -n 3 - 8n - 2

User Kach
by
6.9k points

1 Answer

4 votes

Answer:

n³ + 4n² - 8n - 9

Explanation:

(2n³ + 4n² - 7) + (-n³ - 8n - 2)

2n³ + 4n² - 7 - n³ - 8n - 2

2n³ - n³ + 4n²- 8n - 7 - 2

n³ + 4n² - 8n - 9

User Avinash Jadhav
by
7.2k points
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