$\frac{a}{2}+a$
$\frac{5x^3-8x^2+7x}{x-5}$
$-2\sqrt{3}+2i$
$6x+9=81$
$\sqrt{x^5}+\sqrt{x^3}+\sqrt{x^{11}}$
$475-\left(-3^2\right)$
$4x-1>2x$
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