$a^4-8a^2-128$
$cos\:\left(\frac{\pi}{4}\:+\:\frac{\sqrt{3}}{2}\right)$
$\int\left(5x-10\right)^7dx$
$\int\left(\frac{2}{x\sqrt{1-x^2}}\right)dx$
$\left(\frac{n-5}{n}\right)^n$
$2-\left(-5\right)-16+\left(-20\right)$
$\left(a^{n+1}+a^{n-1}\right)^2$
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