$\frac{dy}{dx}\:=x\:+\:5y;\:y\left(0\right)=3$

$\left(y-3\right)\left(y-1\right)$

$\frac{\left(1+\cos\:\left(x\right)\right)}{\sec\left(x\right)}$

$\int\frac{\left(2x+4\right)}{x^2+5x-6}dx$

$\frac{5x}{\left(1-3.9x\right)\left(1+0.39x\right)}$

$\int_2^{\infty}\left(\cos\left(\pi\cdot x\right)\right)dx$

$\int_{-\infty}^0\left(\frac{4}{16+x^2}\right)dx$