$x^2\left(-\frac{1}{e^x}\right)$
$170+90$
$\left(-1\right)^3x\left(-1\right)^4$
$144x^2-200x+81$
$20.86\cdot\tan\left(58\right)$
$2c^2\left(2c^2-4c-2\right)$
$4+1+2+3$
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