$\frac{dy}{dx}=\frac{-y-1}{\left(y-1\right)\left(1+x^2\right)}$

$\left(36an+60n\right)^2$

$\int\frac{sen\left(t\right)}{cos\left(t\right)}dt$

$26\cdot24$

$\log_{10}\left(5\right)+\log_{10}\left(8\right)-\log_{10}\left(4\right)$

$a^3+a+2a^2-\frac{1}{a-1}$

$\frac{dx}{dt}+sin\left(t\right)x=0$