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morpeh [17]
3 years ago
10

Find the sum and choose the correct answer.

Mathematics
2 answers:
amid [387]3 years ago
7 0

Answer:

Step-by-step explanation:

2n³ + 4n² - 7 + ( -n³ -8n -2) =2n³ + 4n² - 7 - n³ -8n -2

=2n³ - n³ + 4n² <u>- 7 -2</u> - 8n

= n³ + 4n²  - 8n<u> - 9</u>

aev [14]3 years ago
3 0

Answer:

n3 + 4 n2 + 8 n - 16

Step-by-step explanation:

you just have to combine like terms. give me a brainliest?

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