Calculus Examples

$f (3) = \frac{x^{2} - 4 x + 3}{x - 3}$

Step 1

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

$f (3) = \frac{{(3)}^{2} - 4 \cdot 3 + 3}{(3) - 3}$

Step 2

Subtract $3$ from $3$ .

$f (3) = \frac{{(3)}^{2} - 4 \cdot 3 + 3}{0}$

Step 3

The expression contains a division by $0$ . The expression is undefined.

Undefined