Check whether $-2$ and $2$ are zeroes of the polynomial $x + 2$.
Check whether $-2$ and $2$ are zeroes of the polynomial $x + 2$.
Let $p(x)=x+2$
Then $p(2)=2+2=4,\, p(-\,2)=-\,2+2=0$
Therefore, $-2$ is a zero of the polynomial $x+2,$ but $2$ is not.
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