## Answers

Here,

you can easily subtract or add the terms as they all have

It is like a variable, like let

So it goes,

= 4x+2x-5x

= 6x -5x

= x

=

you don't actually have to suppose but, you can add or subtract any terms containing same values under root.

#### Explanation:

Treat the radicals like variables, we can only add/subtract those of the same variable and degree

In the case of the question, all the involved radicals are the same.

So we can proceed to adding/subtracting them.

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