$6\cdot\left(10+25\right)$

$-150x^2+237x+43$

$\frac{dy}{dx}+\frac{1}{x^2}y\:=\:0,\:y\left(1\right)\:=\:0$

$tan\left(x-\frac{\pi}{4}\right)=\frac{1}{\sqrt{2}}$

$\int\tan\:\frac{x}{5}\:dx$

$f\left(x\right)=\sqrt{2x^2}-6x+8$

$\ln\left(x\right)+\ln\left(x-5\right)=\ln\left(5x\right)$