1. **State the problem:** Find the first-order derivative of the function $$f(x) = (x^2 + 3)(x^2 - 2)$$.
2. **Recall the product rule:** For two functions $$u(x)$$ and $$v(x)$$, the derivative of their product is $$f'(x) = u'(x)v(x) + u(x)v'(x)$$.
3. **Identify functions:** Let $$u(x) = x^2 + 3$$ and $$v(x) = x^2 - 2$$.
4. **Compute derivatives:**
- $$u'(x) = 2x$$
- $$v'(x) = 2x$$
5. **Apply product rule:**
$$f'(x) = u'(x)v(x) + u(x)v'(x) = 2x(x^2 - 2) + (x^2 + 3)2x$$
6. **Simplify:**
$$f'(x) = 2x(x^2 - 2) + 2x(x^2 + 3) = 2x(x^2 - 2 + x^2 + 3) = 2x(2x^2 + 1)$$
7. **Final answer:**
$$f'(x) = 2x(x^2 - 2) + 2x(x^2 + 3)$$ which matches the second option.
First Derivative Ec3279
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