$4\left(x+2\right)-3\left(x-5\right)<223$

$\lim_{x\to-3}\left(\frac{t^2+6t+9}{t+3}\right)$

$\lim_{x\to\infty}\left(\frac{x^{\:3}}{e^x}\right)$

$\left(2-y^2\right)^3\:$

$y^2-4yv+4v^2$

$\left(2t\right)\left(3t\right)\left(5t^2\right)$

$\left(x-1\right)^2-\left(x+3\right)^2-x^2>7$