$\left(\tan\left(x\right)+\frac{1}{2}\right)=3$
$\left(7\right)+4-\left(-2\right)+\left(10\right)-\left(6\right)$
$\left(-5+7-8\right)-\left(6+1-12\right)$
$2+-6^2$
$-4x-5x^2+7x+8x^2-15x$
$x^3-x^2-9x-6$
$ln^2\left(\sqrt{t+1}\right)$
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