$\lim_{x\to\infty}\left(\frac{e^{7x-9}}{8x}\right)$

$\sqrt{x+3}-5=2$

$\frac{2m}{\sqrt{5}}$

$\int\left(\left(2x-10\right)\left(x^2-10x-3\right)\right)dx$

$\lim_{x\to0}\left(\frac{x^2-\sin^2\left(x\right)}{x\sin\left(x\right)}\right)$

$4x^2-4x+7$

$x^{2}+9\frac{dy}{dx}=-x$