$\frac{\left(5+2i\right)\left(5-2i\right)}{\left(3+i\right)^2}$

$\int_{-\pi}^{\pi}x^3\:\sin\:\left(x\right)dx$

$\frac{5}{2x-5}+\frac{2}{x+3}=\frac{3}{x-2}$

$x+1=2x+1$

$\sqrt[16]{24\left(5^2+1\right)\left(5^4+1\right)\left(5^{16}+1\right)+1}$

$\frac{x+5}{4}+\frac{x-3}{2}>5$

$e^{cos\:y}=\cos\left(x\right)$