$8x+30$
$\sqrt{x+3}\cdot\sqrt{x+3}$
$16b^2+24b+9$
$2x+2=2$
$x^{2\:}y'=y$
$\left(\frac{2}{3}x^2-\frac{3}{4}y\right)^2$
$\sqrt[3]{20+\sqrt{49}}$
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