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Kaylis [27]
3 years ago
5

Find the sum and choose the correct answer.2n 3 + 4n 2 - 7 and -n 3 + 8n - 9

Mathematics
2 answers:
Delvig [45]3 years ago
7 0
N<span><span><span>​3</span><span>​​</span></span>+4<span>n<span><span>​2</span><span>​​</span></span></span>+8n−16
  hope helped
</span>
Salsk061 [2.6K]3 years ago
4 0

Answer:

The correct answer for the sum is : n^{3} + 4n^{2} + 8n -16

Step-by-step explanation:

We start by adding each n term, n3 with n3 and the same with n2, n and then numbers

(2n^{3} + 4n^{2} -7 ) +  ( -n^{3} + 8n -9)

(2-1)n^{3}

(4+0)n^{2}

(8+0)n

(-7-9)

n^{3} + 4n^{2} + 8n -16

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