$\frac{d}{dx}\left(xe^{-3x}\right)$

$2x-2\ge-1$

$\left(-3x^2y^{-1}\right)\left(-xy^2\right)$

$46-\left(-22\right)$

$5x+\left(-x-y\right)-\left(-y+4x\right)+\left(x+6\right)$

$-2y^3+3y+7y^3+1+2-5$

$46.3761+59.4441+16.8921+10.3041+7.3441+6.3001+5.3361+4.8841+4.0401+3.2761+4.5602+0.6561+1.0082+0.2601+0.0961+0.0441+0.0242+0.1682+0.6962+1.8723+2.3763+0.9801+1.1881+2.8561+3.5721+8.7362+5.2441+7.7841+8.9401+16.7281+19.2721+34.6921$