Finding a Potential Point of Inflection
The second derivative of the function $$f(x)= x^3 + 3x^2 - 6x + 1$$ is $$f''(x)= 6x+6$$. For what value of $$x$$ is $$f''(x)=0$$?
A
$$x=1$$
B
$$x=0$$
C
$$x=-6$$
D
$$x=-1$$
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