$x^6-121$
$-x^2-4x-1$
$\int\frac{4x+7}{2x^2-4x-96}dx$
$0=3tanb+4\sin^2\left(b\right)\cdot\tan\left(b\right)$
$-1+2.3$
$\int\frac{x^5}{\sqrt[3]{x^2+9}}dx$
$\:\int\frac{-\csc^2\left(x\right)}{\cot^3\left(x\right)}dx$
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