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By root, I'm going to assume you mean a square root.

First, you try to isolate the root.

Then, you simplify

Then, you square everything (EVERYTHING).

Set everything equal to zero.

Then, you can solve for x using factoring.

EX)

√3x+2x+4=3x-2

Isolate your x. Therefore,

√3x+2x=3x-2-4

√3x=3x-2x-2-4

Simplify.

√3x=x-6

Square everything.

(√3x)²=x²-6²

Then, you get 3x=x²-36

Set it all = to zero.

x²-3x-36=0

Now, you can factor. Factoring is a whole nother topic, it can be found on any website. Just Google search "factoring". For this problem, you're gonna have to use the quadratic formula. Rather than do all that, I'm just going to say your answers-

x=7.68465

x=-4.6846

You (normally) will have two answers when solving a sq rt problem, because in the last step, you end up with an (x+/-#)times(x+/-#)=0. You then set both of these parentheses equal to zero, so you have two answers.

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