$\lim_{x\to1}\left(\left(x-1\right)^{\log\left(x\right)}\right)$
$\left(x+22\right)\left(2x+3\right)$
$4x^2-6x+81$
$3\cos\left(x\right)^2\:-\:\frac{3}{4}\cos\left(x\right)\:=2\cos\left(x\right)^2\:-\:\frac{1}{8}$
$\int e^{2lx}dx$
$\int9xe^{3x^2+2}dx$
$x+27=-9$
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