$151x+85y=1$
$7\left(4q+3\right)+7$
$\int2xe^{x^2-1}\:dx$
$-2\left(-6+5k\right)-1$
$\left(4x-1\right)\left(3x-5\right)$
$20+90+519$
$\left(3m+5n\right)^3$
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