$\left(x-8y\right)\left(x+12y\right)$
$\frac{cos\left(x\right)sec\left(x\right)}{cot\left(x\right)}$
$4n+11-2n$
$\left(z-5w\right)\left(2+5w\right)$
$\left(\frac{1}{3}a-\frac{3}{4}b\right)^2$
$-61-121$
$5x^2\cos+y^2=1$
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