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

$\int\frac{t^4}{\sqrt[5]{3+t^5}}dt$

$\sqrt[n]{\frac{6^n+6^n}{2}}$

$\left(-70\right)\cdot\left(-7\right)\cdot14$

$9\left(x+2\right)^2-169\left(x-y\right)^2\:$

$\:\left(-9-7\right)\:-\left(9-1\right)=\:$

$\int\frac{6x^2+5s-9}{\left(x+1\right)\left(x^2-2x-3\right)}dx$