5.3 The Fundamental Theorem of Calculus/33

$\int _{1}^{2}\left(1+2y^{2}\right)dy$ =$\int _{1}^{2}\left(4y^{2}+4y+1\right)dy$ =Failed to parse (syntax error): {\displaystyle \1y+frac {4y^3}{3}+frac{4y^2}{2}}