# Find the Roots (Zeros) f(x) = square root of x-4

Set equal to .
Solve for .
To remove the radical on the left side of the equation, square both sides of the equation.
Simplify each side of the equation.
Multiply the exponents in .
Apply the power rule and multiply exponents, .
Cancel the common factor of .
Cancel the common factor.
Rewrite the expression.
Simplify.
Raising to any positive power yields .
Add to both sides of the equation.
Find the Roots (Zeros) f(x) = square root of x-4