Find the sum and choose the correct answer.

2n 3 + 4n 2 - 7 and -n 3 + 8n - 9

a) -n3 - 4n2 - 8n - 16
b) n3 + 4n2 + 8n - 16
c) n3 + 4n2 + 8n + 16
d) 3n3 + 4n2 + 8n - 2

B) n3 + 4n2 + 8n - 16

Step-by-step explanation:

combine 2n3 - n3 = n3

4n2 stays the same

combine -7 - 9 = -16

8n stays the same

n3 + 4n2 + 8n - 16

correct answer:

i^31 = -i

answer: y = 3/2 x - 3

y = 1/8 x - 3/4 that would be your correct option

step-by-step explanation: w