Algebra Examples

$f (3) = \sqrt{3 - 3}$

Step 1

Replace the variable $3$ with $3$ in the expression.

$f (3) = \sqrt{(3) - (3)}$

Step 2

Simplify the result.

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Step 2.1

Multiply $- 1$ by $3$ .

$f (3) = \sqrt{3 - 3}$

Step 2.2

Subtract $3$ from $3$ .

$f (3) = \sqrt{0}$

Step 2.3

Rewrite $0$ as $0^{2}$ .

$f (3) = \sqrt{0^{2}}$

Step 2.4

Pull terms out from under the radical, assuming positive real numbers.

$f (3) = 0$

Step 2.5

The final answer is $0$ .

$0$

Step 3