Question

Which of these is not a zero of polynomial p (x)=x^3-x^2-14x+24
2 and 3
-2 and 4
2 and-4
3 and-4​

Answer 1

-2 and 4

x=-2

x^3-z^2-14x+24

-2^3-(-2)^2-14×-2+24

+4+52+56

48

x= 4

4^3-4^2-14×4+24

64-16-56+24

48-32

16