Question

if (x-3) is a factor of p(x) = x³ - kx2² + (k+1) x - 12. find the value of K​

Answer 1

Answer:

x=3

then,

P(3)=(3)^2-k(3)^2×2+(k+1)(3)-12

=27-18k+3k+3-12

=18-18k+3k

=18-15k

18=-15k

-18/15=k

k=-6/5