$\frac{x^3+2}{x^2+3}$
$\left(-56\right)+\left(-78\right)-\left(65\right)-\left(1\right)$
$3x^2-2x+1<0$
$\int-2dy$
$\int x^{6}\left(x^{7}-6\right)^{4}dx$
$3x^2+3y^2=-6$
$sec^2\left(x\right)-\sin^2\left(x\right)\sec^2\left(x\right)$
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