$4y''+4y'-24y=0$

$\left(\frac{1}{64}m^9\right)+3\left(\frac{1}{16}m^6\right)\left(\frac{1}{3}n\right)+3\left(\frac{1}{4}m^3\right)\left(\frac{1}{9}n^2\right)+\left(\frac{1}{27}n^3\right)$

$-2-\left[5-\left(1-7\right)-6\right]$

$\lim_{x\to\infty}\frac{x^2+11x+30}{x^2+4x+4}$

$2a^2b+2a^2-3b-3$

$\frac{x^2-15x+25}{x+5}$

$\int\frac{4x^3}{x^4+6}dx$