$\lim_{x\to\infty}\left(\frac{x^3+7x^2+10x}{x^2+x-6}\right)$

$7+-2t+-9t-8$

$\lim_{x\to-1}\left(\frac{3x}{x^2+2x+1}\right)$

$\left(a^{2}b^{5}\right)^{5}$

$\left(15\right)+\left(82\right)-\left(-75\right)$

$uv\:-\:\:3u\:+\:3v\:-\:6\::\:uv\:-\:3v-\:3u\:+\:15$

$\left(y-1\right)\frac{dx}{dy}-x=y\left(y-1\right)^2$