Question

plzz solve it and ahow​

Answer 1

Step-by-step explanation:

Let,

$f(x) = {x}^{3} - 3 {x}^{2} + 3x + k$

And let x = 3 is one zeroes of polynomial.

So, f(3) = 0

$= > f(3) = {3}^{3} - 3 \times {3}^{2} + 3 \times 3 + k = 0 \\ = > 27 - 27 + 9 + k = 0 \\ = > k = - 9$