$5\left(x+2\right)^5-2\left(x-1\right)^2$

$\lim_{x\to0}\left(\frac{\sqrt{5+x}-\sqrt{10}}{x}\right)$

$\left(xy^3\right)\left(y^4x^4\right)\left(y^2\right)$

$+1-\left(-8-10\right)+\left(+7-5\right)$

$50=x^2-2x$

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

$x^2-5x\:<6$