Find the integral `intx^2(1-1/(x^2))dx`

Explanation

To solve the integral \( \int x^2 \left(1 - \frac{1}{x^2}\right) dx \), we will follow these steps:

### Step 1: Simplify the integrand
We start by distributing \( x^2 \) inside the parentheses:

\[ x^2 \left(1 - \frac{1}{x^2}\right) = x^2 - x^2 \cdot \frac{1}{x^2} \]
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