Answer: x=328
Step-by-step explanation
in the given equation
we will first remove the square root from the equation in order to do the same
From squaring both sides we get
4x-16 =

4x -16 = 1296
After shifting 16 on Right hand side we will get the following
4x= 1296 + 16
after adding right hand side we will get the following
4x = 1312
4 will shift to the right hand side we will get the following result
x =

finally after division by 4 we will get the final value
x =328