$77+88$
$\sqrt[2]{5^{10}}$
$35a-21<-35a+19$
$\left(\frac{1}{2}+a\right)\left(\frac{1}{2}-a\right)$
$\int\frac{2x}{\left(1+x\right)}dx$
$\frac{x\:+\:13}{12}\:=1$
$4\frac{x^3-3x^2+2x+4}{x-7}$
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