Radical Equation help

Question

                                                                             ___

Is x=18 in the solution set of the radical equation ⁴ √x-2+4=2 (4 root of x minus 2 end root plus 4 equals 2)? Tell why or why not. Show any work.

 

Answer 1

Plug x into the expression on the left side of the equation, and simplify the left side.  If you get the number on the right side, it is a solution.  If you do not get the number on the right side, it is not a solution.  Try it.