Question

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Answer 1

We can simplify radicals by factoring the radicand.
If you don't know what a radicand is, it is the number inside the radical.

The number 18 has the factors 6 and 3. But we want one factor when being square rooted be a perfect square.

So, we want to use the factors 9 and 2.

Now it is
`√(9 * 2)`
And we get the numbers their own radicals.


`√(9 * 2) = √(9) √(2)`

The
`√(9)` can be simplfied to 3.

And now we have
`3 √(2)`.