$\left(e^{-10t}-10te^{-10t}\right)\left(cos\left(500t\right)\right)-500te^{-10t}\left(sin\left(500t\right)\right)$

$\int\frac{\left(x+1\right)}{\left(x^2+4x+5\right)}dx$

$0.1109\cdot4$

$\left(\left(x+2\right)-y^2\right)^2$

$\left(a^5b^9\right)\left(a^3b^5\right)$

$375\cdot5$

$x^2\tan y=50$