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.
Raise to the power of .
Move all terms not containing to the right side of the equation.
Subtract from both sides of the equation.
Subtract from .
Solve for z square root of z+13=3