$5\left(10a+1\right)+2\left(2+8a\right)$
$3x\left(b-3c-4d\right)-2by+6cy+8dy$
$487.38-29.97$
$s^2+6s+5$
$24x^2yz\:+\:8x^3y^2z^1-16x^4y^3$
$\left(-5a^3\right)\left(6a^3b\right)$
$1-\sin x=\frac{\left(\cos x\right)^2}{1+\sin x}$
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