$\frac{4}{7}\cdot490$
$\int\left(2x^4+4x\right)\left(5x-2\right)dx$
$2\left(x+1\right)-3\left(x-2\right)\le x-6$
$\left|8\right|-9$
$\left(2\sqrt{t}-1\right)^3$
$\int_{x^2}^{2-x}\left(\pi\:x^2\right)dx$
$5+2\left(3x-4\right)-x$
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