$a+b-c+d+a-b+c+d-2a+3b-3c+d-3a-3b+4c-d$

$15xy2\:+\:5xy2\:+\:xyz$

$log\left(5\right)\left(2x+1\right)=2.1959$

$\text{large}\:28x^{-5}$

$\left(\frac{5h^2k}{2}-\sqrt{p}m^5\right)^2$

$\lim_{x\to\infty}\left(\frac{8x^4-3\sqrt{x}}{4x^4+x^{-1}}\right)$

$\frac{x^{\frac{25}{16}}}{x^4}$