$sin-1\left(-\frac{\sqrt{2}}{2}\right)$

$\lim_{x\to-5}\left(\frac{x^2+3x-10}{x+5}\right)$

$216-y^6$

$\left(5-3\right)\left(7+6\cdot6\right)$

$-4+5-\left[\left(8:2-10\cdot2\right)\right]+1$

$2-3+\left(-4\right)+\left(+2\right)-3$

$\left(7x^3y^3z^2-9\right)\left(7x^3y^5z^2+9\right)$