$x^2+12x+346$
$2.54-4.12$
$\left(-2\right)+\left(-3\right)+9+\left(-2\right)+1$
$\left(14x-5y^2\right)^2$
$\left(-\cos\left(x\right)^2\right)+\left(5\cdot\sin\left(x\right)\right)-1=0$
$2ab+12ba-15xy+6xy-ab+2xy$
$\frac{x^3}{3}-\frac{7x^2}{2}+6x$
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