Question

If-2 is a zero of the
polynomial x² - 4x tk, then
find the value of k.
Please fastttt I have exam

Answer 1

Answer:

p(x)=x^2-4x+k=0

one zero of p(x)= -2

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

=4+8+k=0

=. k = -12