$a^2+10+25$
$y'=1+x^2y'$
$\cos\left(\pi-2x\right)$
$sin4x=-2sin2x$
$\left(\sqrt{5x-\sqrt{2y}}\right)\left(\sqrt{5x+\sqrt{2y}}\right)$
$\left(1+\sqrt[2]{-1}\right)^{20}$
$12a^2b^3-8ac^2+20b^2c$
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