5.3 The Fundamental Theorem of Calculus/19

Failed to parse (unknown function "\begin{align}"): {\displaystyle \begin{align}\int_{-1}^{2}(x^3-2x)dx &=\frac{x^4}{4}-\frac{2x^2}{2}\Bigg|_{-1}^{2}&=\frac{(2)^4}{4}-\frac{2(2)^2}{2}} \end{align}