48. Evaluate the integral: \[ \int \frac{3x^3 - x^2 - 5x + 1}{x - 2} \, dx \]






Answer is: option2

\( x^3 + \frac{5x^2}{2} + 5x + 11 \ln |x - 2| + C \)

Solution:

Using long division method:

\[ \frac{3x^3 - x^2 - 5x + 1}{x - 2} = 3x^2 + 5x + 5 + \frac{11}{x - 2} \]

Now integrate term by term:

\[ \int \left( 3x^2 + 5x + 5 + \frac{11}{x - 2} \right) dx = \int 3x^2 \, dx + \int 5x \, dx + \int 5 \, dx + \int \frac{11}{x - 2} \, dx \]

\[ \int \frac{3x^3 - x^2 - 5x + 1}{x - 2} \, dx = x^3 + \frac{5x^2}{2} + 5x + 11 \ln |x - 2| + C \]

Hence option B.

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