$\left(-4x^2-5x^5+3+7x\right)-\left(5x^3+8x^5-2\right)$

$6x^5y^2\:8xy^4$

$2^3\cdot5^7\cdot n\cdot m^2-2^8\cdot5^3\cdot n^6\cdot m^3-100\cdot n\cdot m^3$

$\frac{d}{dx}x^2\:y^2\:-2x\:=\:4-4y$

$x+1+1-3x$

$\frac{2x}{12\:}-\frac{x}{4}<-\frac{11}{3}-\frac{x}{2}$

$\lim_{x\to\infty}\left(\frac{sin\left(x\right)cos\left(x\right)}{\left|x^3\right|}\right)$