Question

Simplify root $45.$

Answer 1

Square root of a number:

Root 45 means square root of $45$ i.e.$\sqrt{45}$

Square root of 45 can be simplified as follows:

$\surd 45=\surd (9\times 5)$

$\Rightarrow$$\surd 45=\surd 9\times \surd 5$

We know that the square root of $9is3.$

Hence, $\surd 45=3\surd 5$

Thus, $3\surd 5$ is the simplest radical form of root $45.$