Question

Which of the following is a factor of the polynomial
x4 – x3 – 7x2 + x + 6
a. 2
C. O
d. 5
b. - 1
​

Answer 1

Answer:

-1

Step-by-step explanation:

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

= 0

so, -1 is a factor of p(x).