$64x^2y^2+144x^4$
$3xy^2+5y-y^3$
$\int_0^{\infty}\left(\frac{4}{x\sqrt{2x^2-1}}\right)dx$
$\frac{sinxtanx}{sinx+tanx}=\:\frac{sinx}{1+cosx}$
$\frac{x^5-25x^3+x^2-25}{x-1}$
$\left|3529\right|$
$b^2-30b+5$
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