$\left(\frac{2}{3}y-4\right)^2$

$\left(10x^{3}+2x^{2}-5x\right):\left(2x^{2}-3\right)$

$\lim_{x\to\infty}\left(\frac{4+9x^9}{x^6+6x^9}\right)$

$\frac{1}{x^2-5x+6}$

$\lim_{x\to0}\frac{1-\cos^2\left(x\right)}{x\left(1+cos\:\left(x\right)\right)}$

$12a^2+6am$

$\int_0^1\left(3x-2\right).e^{-x}dx$