$3478-\left(-1441\right)$

$45y^{12}+30y^{10}$

$\left(5x^2+2x-3\right)^2$

$4x-3x+2$

$\int3\left(5+\frac{1}{2}t\right)^{-\frac{1}{3}}dt$

$\frac{d^2}{dx^2}\left(x\ln\left(1-2x\right)\right)$

$\int\frac{3}{x\left(x^2+1\right)^2}dx$