If $f(x)$ be a polynomial function such that $f(0)=-1,\ f(1)=1,\ f(2)=-2,\ f(3)=-2$, then minimum number of roots of the equation $(f'(x))^{3}+2f(x)f'(x)f''(x)=0$ in $(0,3)$ is
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If $f(x)$ be a polynomial function such that $f(0)=-1,\ f(1)=1,\ f(2)=-2,\ f(3)=-2$, then minimum number of roots of the equation $(f'(x))^{3}+2f(x)f'(x)f''(x)=0$ in $(0,3)$ is