$\frac{1-a^3}{1+a}$
$36.846+6.796+2.349+7$
$\left(b+c\right)^7$
$x+\frac{b}{2}$
$560-\left(-140\right)$
$\int\frac{2}{2x+4}dx$
$\lim_{x\to\infty}\left(\frac{6x^2+7x}{9x^3+4x+4}\right)$
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