$\int\left(2e^x-\frac{6}{x}\right)dx$
$\left(-3x^{-2}y^4\right)^3$
$\left(2mx+ny\right)^3$
$1-2sin^2\left(165\right)$
$-\left(-8\right)+\left(-33\right)-7-\left(-21\right)$
$36-\left(4\cdot16+2\cdot1\cdot9\right)$
$\int_0^1\frac{t^4+3t^3+t^2+3}{t^2+1}dt$
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