$\frac{10}{10^2}^8$

$\frac{\left(x+1\right)^3}{\left(x-1\right)^3}$

$a+b+2\:a+b\:-2$

$\left(7\cdot10^8\right)\left(9\cdot10^6\right)$

$\left(2y^3\right)\left(2yx^3\right)^4$

$\lim_{x\to\infty}\left(\frac{2x^3+4}{x+3}\right)-\left(\frac{5x^3-x}{x+3}\right)$

$\frac{5}{6}a+1-\frac{7}{12}a+1$