$\frac{sin^5x+cos^2xsin^3x}{csc\left(-x\right)}$

$\frac{x^3+x^2+1}{x^2+4}$

$20x^2+9x-18$

$\infty^2+\infty^3-\infty+3$

$\lim_{x\to\infty}\left(\frac{3x^2+1}{\ln\left(2x^2+2\right)}\right)$

$\frac{2}{s+1}+\frac{3}{s^2}+\frac{2}{s}-\frac{1}{s+4}$

$64m^4-64m^2n^5+16n^{10}$