$3x^3-2x^2+5$
$\left(b^{n+3}-b^{-3}\right)^2$
$4\left(\cos\:\left(a\right)\frac{1}{\sqrt{3}}\right)$
$-5-5b$
$7x-12=3x+4$
$-\frac{100}{-25}$
$1-\left(-3+6+1\right)-\left(-2\right).\:\left(4-\left(6-3+1\right)-2\right)$
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