$x-63=17$

$\frac{dy}{dx}=\frac{x^3-cos\left(x\right)}{4y}$

$\log_{10}\left(\left(5x^2-x\right)\right)=2$

$10+27d+7-d$

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

$\ln\left(\cosh\left(4x-\sinh\left(4x\right)\right)\right)+\ln\left(\cosh\left(2x\right)-\sinh\left(2x\right)\right)$

$\frac{3x+5}{\left(x+1\right)^{2}\left(x^{2}+1\right)}$