$3-\left(-2\right)-\left(-2+3\right)-\left(-3\right)$
$\left(x+\frac{1}{2}\right)\left(x-\frac{1}{2}\right)$
$\left(\frac{2}{3}m^2x-5n^3z^2\right)^2$
$9x-17=2x+32$
$8^2-2$
$\sin\left(90\left(4a+1\right)+x\right)$
$3\sqrt{x-2}+2x=6$
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