Question

if (x-3) is a factor of p(x) =x³-3x²k x-12 ,then the k = short type answer questions​

Answer 1

x = 3

so substitute 3 in the place of X and easily you can find k

Answer 2

Answer:

as (x-3) is a factor

therefore remainder will be zero

p(3)=o

${3}^{3} - 3 \times {3}^{2} k + 3 - 12 = 0 \\ 27 - 3 \times 9k - 9 = 0 \\ 18 - 27k = 0 \\ 18 = 27k \\ \frac{18}{27} = k \\ \frac{2}{3} = k$