$5a^2bc^3-3a^2bc^3+7a^2bc^3-10a^2bc^3$
$\lim_{x\to0}x^2\left(e^{-x^{-2}}-1\right)$
$x^4+2x^2y^2=a^4$
$24\:-\:\left(-49\right)$
$x=5a+\frac{1}{40}+\frac{3}{5}$
$\left(\sqrt[8]{16x^{12}}\right)^6$
$4x^2+x-14$
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