$\int\frac{1}{\sqrt{5-4x-x^2}}dx$
$.51u+.59+u$
$\int4x^3+3x^2+2x+5dx$
$\frac{d^4}{dx^4}\left(\cot\left(x\right)\right)$
$\left(-18x^4-13x^3+15x^2+7x-6\right)+\left(15x^3+13x^2+10x-7\right)$
$2\left(b+9\right)$
$8\frac{8}{8}$
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