Question

find the value of k if -1 is a zero of the polynomial p of x equal to X square - 4 x + k

Answer 1

Answer:

k=-5

Step-by-step explanation:

p(x)=x^2-4x+k

p(-1)=0

0=(-1)^2-4(-1)+k

0=1+4+k

0=5+k

k=-5