$\frac{5\left(1+2cos\left(2\right)\right)}{\left(2+cos\left(2\right)\right)^2}$
$\left(b-4\right)\left(b-3\right)$
$12a^2+6a^5+8a^7$
$\left(\frac{2x}{5}-1\right)\left(\frac{2x}{5}+3\right)$
$\int_8^{\infty}dx$
$\left(a^5+5b^2\right)\left(a^5+5b^2\right)$
$81\cdot\left(-9\right)\cdot\left(-27\right)$
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