Question

if (-1) is a zero of the polynomial p(x) =kx^3-x^2+x+4​

Answer 1

Step-by-step explanation:

if -1 is a zero of the polynomial kx^3-x^2+x+4,then p (-1) = 0

0 = k × (-1^3) - (-1^2) + (-1) + 4

0 = k×(-1) - 1 - 1 + 4

0 = -k - 1 - 1 + 4

k = -2 + 4

k = 2