$\lim_{x\to0}\left(\frac{3x+1}{3x}\right)^{9x}$
$3x^2+2y+3xy+3xy$
$\left(-\frac{\arctan\left(\frac{-\infty}{3}\right)^3}{9}\right)$
$16r^2-40r+25$
$14w^2-19w-3$
$-25\:+\left(-4\right)+\left(32\right)+120$
$\int_{-1}^0\left(\frac{x^3}{x^2-2x+1}\right)dx$
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