We have the function f(x) = x^6 + 4x^4 + 3x and we have to find the second derivative.

First let's find the first derivative

f'(x) = 6x^5 + 16x^3 + 3

The second derivative is found by differentiating the first derivative

f''(x) = 30x^4 + 48x^2

** The required second...**

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We have the function f(x) = x^6 + 4x^4 + 3x and we have to find the second derivative.

First let's find the first derivative

f'(x) = 6x^5 + 16x^3 + 3

The second derivative is found by differentiating the first derivative

f''(x) = 30x^4 + 48x^2

**The required second derivative of f(x) = x^6 + 4x^4 + 3x is f''(x) = 30x^4 + 48x^2**