$\int\frac{x}{81x^4+1}dx$
$32-\left(-12\right)+1$
$\left(p-9\right)\left(p-11\right)$
$\left(cos\:\theta\:+1\right)\left(cos\:\theta\:-1\right)$
$8^2\cdot7^2$
$x^4-x^2+2x+2$
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