Question

If $k$ is said to be a zero of a polynomial function $P\left(x\right)$, then $P\left(k\right)=$ _____.

Answer 1

Explain zero of a polynomial function:

If $k$ is a zero of a polynomial function $P\left(x\right)$.

It means that $k$ satisfies the function $P\left(x\right)$.

i.e., for $x=k$, the function $P\left(x\right)=0$

$\Rightarrow$ $P\left(k\right)=0$

Hence, if $k$ is said to be a zero of a polynomial function $P\left(x\right)$, then $P\left(k\right)=\underline{0}$.