$121y^2-m^6n^4$

$4x^2+2x+3-2x^2-4x^2+6x+6x^2+2-3+5x$

$\int\frac{1}{\left(x^2-4\right)^{\frac{3}{2}}\:}dx$

$8^3\cdot8^{-5}$

$\left(3w\right)\left(w+4\right)\left(w-4\right)\left(x\right)$

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

$\lim\:_{x\to\:\infty\:}\left(\frac{x+24}{x^2+95x+4}\right)$