Verify that 2 is a zero of the polynomial x^3+4 x^2-3 x-18. - Vidyadip

Question

Verify that $2$ is a zero of the polynomial $x^3+4 x^2-3 x-18$.

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Answer

Let $p(x)=x^3+4 x^2-3 x-18$
Now, $p(2)=2^3+4 \times 2^2-3 \times 2-18=0$
$\therefore$ $2$ is a zero of $p(x).$

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