Question

The zero of the polynomial $P\left(x\right)=\sqrt{5}x-5$

• A. $\sqrt{5}$
• B. $-\sqrt{5}$
• C. $\frac{\sqrt{5}}{5}$
• D. $-5$

Answer 1

Answer: (A)

$\sqrt{5}$

Given polynomial is $P\left(x\right)=\sqrt{5}x-5$.

To get the zeros of $P\left(x\right)$, equate it to zero,
$\Rightarrow \sqrt{5}x-5=0$

$\Rightarrow \sqrt{5}x=5$

$\Rightarrow x=\sqrt{5}$

Hence, the zero of $P\left(x\right)$ is $\sqrt{5}$.