Replace the variable with in the expression.

Simplify the result.

Raise to the power of .

Subtract from .

Any root of is .

The final answer is .

The value at is .

Replace the variable with in the expression.

Simplify the result.

Raise to the power of .

Subtract from .

Rewrite as .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

The final answer is .

The value at is .

Replace the variable with in the expression.

Simplify the result.

Raise to the power of .

Subtract from .

The final answer is .

The value at is .

Replace the variable with in the expression.

Simplify the result.

Raise to the power of .

Subtract from .

Any root of is .

The final answer is .

The value at is .

Replace the variable with in the expression.

Simplify the result.

Raise to the power of .

Subtract from .

Rewrite as .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

The final answer is .

The value at is .

Replace the variable with in the expression.

Simplify the result.

Raise to the power of .

Subtract from .

The final answer is .

The value at is .

List the points to graph.

Select a few points to graph.

Graph f(x) = square root of x^2-8