$100a^2b^3c-150ab^2c^2+50ab^3c^3-200abc$

$\left(25a^2x-15x\right)\left(25a^2x+6x\right)$

$\int\left(\frac{\left(1+\sqrt{x}\right)^3}{\sqrt{x^3}}\right)dx$

$\frac{\left(5^6\cdot5^3\right)}{5^4}$

$y'=\left[\frac{1-y\left(t\right)}{2}\right]$

$\int\frac{5}{x^2-2x-3}dx$