\( \int \frac{x^{3}-2 x^{2}+1}{5 x^{5}} d x \)

Step 1 ：\( \int \frac{1}{5 x^{2}}(x^{3}-2 x^{2}+1) d x\)

Step 2 ：\( \int \frac{1}{5}(x - 2 + \frac{1}{x^{2}}) d x\)

Step 3 ：\( \frac{1}{5}(\frac{1}{2}x^{2} - 2x - 1 - \frac{1}{x}) + C \)