Find the sum and choose the correct answer. 2n 3 + 4n 2 - 7 and -n 3 + 8n - 9 -n3 - 4n2 - 8n - 16 n3 + 4n2 + 8n - 16 n3 + 4n2 + 8n + 16 3n3 + 4n2 + 8n - 2

Option B (n³ + 4n² + 8n - 16)

Step-by-step explanation:

In this question we have to add two expressions given

( 2n³ + 4n² - 7 ) and ( -n³ + 8n - 9 )

( 2n³ + 4n² - 7 ) + ( -n³ + 8n - 9 )

Now we group the similar terms

( 2n³ - n³ ) + 4n² - ( 7 + 9 ) 8n

= n³ + 4n² - 16 + 8n

= n³ + 4n² + 8n - 16

Option B (n³ + 4n² + 8n - 16) is the correct answer.

i think is g(1)=-1.

hope that i can