Question

for what value of k (x_3) is a factor of p(x) =x3-6x2 +kx-6 ?

Answer 1

x-3=0

x=3

x³-6x²+kx-6=0

(3)³-6(3)²+k(3)-6=0

27-54+3k-6=0

3k=60-27

3k=33

k=11