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

$25+5-8+30+3-7$

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

$\frac{\left(110.25\right)}{\left(2.9983\right)}$

$7x^2-6x+2x^2-3x$

$x^2-4x-95$

$\left(5.8\:\cdot10^{-6}\right)\:\cdot\left(2\:\cdot10^4\right)$