$97x=-1164$

$\lim_{x\to\infty}\left(x\cdot\ln\left(\frac{x}{x+1}\right)\right)$

$-5-2\cdot\left|-5-2\cdot\left(-3\right)\right|+4\cdot\left(-2-4\cdot\left(-7\right)\right)$

$\frac{d^7}{dx^7}\left(x^2+7\right)$

$\frac{x^3-2x^2+3x+2}{x+2}$

$\int\frac{r^{-\frac{1}{2}}}{\left(6+\sqrt{r}\right)^5}dr$

$x^6+2x^6$