$\lim_{x\to0}\left(\frac{\sqrt{x-a}-\sqrt{a}}{x}\right)$
$147.954-1.124$
$-6x+9>0$
$\int\frac{6}{16+x^2}dx$
$2e^{-3x}\left(12\sin\left(2x\right)+5\right)$
$\int\frac{\left(x^2-2\right)}{\left(x^2+1\right)\left(x-1\right)}dx$
$18wxy^2-54m^2x^2y^2+36my^2$
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