1. **State the problem:** Evaluate the expression $$\frac{x^2 - 4x + 2}{x}$$ at $$x = 4$$. 2. **Write the expression:** $$\frac{x^2 - 4x + 2}{x}$$. 3. **Substitute** $$x = 4$$ into the expression: $$\frac{4^2 - 4 \times 4 + 2}{4}$$. 4. **Calculate the numerator:** $$4^2 = 16$$ $$4 \times 4 = 16$$ So numerator is $$16 - 16 + 2 = 2$$. 5. **Divide numerator by denominator:** $$\frac{2}{4} = \frac{1}{2}$$. 6. **Final answer:** $$\frac{1}{2}$$. This means when $$x = 4$$, the value of the expression is $$\frac{1}{2}$$.