Question

 first correct answer will be marked as branders please help fast

Answer 1

even if the first answer is wrong? Just kidding, the first one is -9, second is 0, third is 9, and last is 18

Explanation:

-9

0

9

18

Answer 2

see explanation

Explanation:

Evaluate u for each value of n by substituting value of n into u, that is

n = - 1 → u = - 5(- 1)² + 4(- 1) = - 5(1) - 4 = - 5 - 4 = - 9

n = 0 → u = - 5(0)² + 4(0) = 0 + 0 = 0

n = 1 → u = - 5(1)² + 4(1) = - 5 + 4 = - 1

n = 2 → u = - 5(2)² + 4(2) = - 5(4) + 8 = - 20 + 8 = - 12

Thus

n u

- 1 - 9

0 0

1 - 1

2 - 12