$\int\left(x^3+2x^2+1\right)e^{2x}dx$
$14+-38+-7+-82$
$\left(10\right)-\left(6\right)-\left(-8\right)-\left(-7\right)$
$3h\:+\:56\:-\:8h\:+\:2\:-\:h$
$\:-10\:\cdot2$
$\lim_{x\to0}\left(\frac{1-\cos\left(2\right)}{3x}\right)^{6x}$
$-7\left(x-2\right)+5\left(3-x\right)-4x$
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