Let y = x⁴ - 3x² + 2x. Find the second derivative and the third derivative of y at x = 1.

$f''$ is the derivative of $f'$, and $f^{(n)}$ is the $n$th derivative. For a parametric curve, $\dfrac{d^2y}{dx^2} = \dfrac{d}{dt}\left(\dfrac{dy}{dx}\right)\Big/\dfrac{dx}{dt}$. To verify a relation, differentiate twice and substitute.