$\frac{x^5-x^4+x^2-2}{x^2+1}00$
$\int10tan^9xsec^2xdx$
$\frac{sec\left(b\right)+tg\left(b\right)}{cos\left(b\right)+ctg\left(b\right)}$
$\frac{1x^3+1x^2+1x^1+1}{x^2+1}$
$13+\sqrt[3]{27}$
$y^2-16y+64$
$\left(2+\sqrt{y}\right)\left(2-\sqrt{y}\right)bz$
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