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Discuss the extremum of f(x)=40(3x^4 + ...

Discuss the extremum of `f(x)=40(3x^4 + 8x^3-18 x^2+60)dot`

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To discuss the extremum of the function \( f(x) = 40(3x^4 + 8x^3 - 18x^2 + 60) \), we will follow these steps: ### Step 1: Find the first derivative \( f'(x) \) To find the critical points, we first need to differentiate the function with respect to \( x \). \[ f'(x) = 40 \cdot \frac{d}{dx}(3x^4 + 8x^3 - 18x^2 + 60) \] ...
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