<PRE><B>Question 301930</B>
Note: square root = ^(1/2)

[5x^(1/2)] = 4 + [(x-4)^(1/2)]

Taking square of every terms throughout the equation
This becomes: 
5x = 16 + x - 4 
5x-x=12
4x = 12
x = 12÷4
x = 3

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