Example 4

Step 1
Determine the restrictions on the variable x.


The radicand value must be greater than or equal to zero.

 

Step 2
Solve for the unknown, x.

 

Step 3
Verify the solution .

Left side =

 

Right side = 6

 

 

 
Left side = Right side

The verification confirms the solution value of 20 for x in the equation .