Question

1. What is the degree of polynomial function
P(x) = 6x3 + x4 -5x + 6x +9?
b. 1 C.-5 d. 6
a. 3​

Answer 1

P(x) = x^4 - x^3 - 7x^2 + x + 6

P(-1) = (-1)^4 - (-1)^3 - 7(-1)^2 + (-1) + 6

= 1 + 1 - 7 -1 + 6

= 8 - 8

P(-1) = 0

Answer 2

P(x) = x^4 - x^3 - 7x^2 + x + 6

P(-1) = (-1)^4 - (-1)^3 - 7(-1)^2 + (-1) + 6

= 1 + 1 - 7 -1 + 6

= 8 - 8

P(-1) = 0