$\frac{h}{h^{-52}}$
$2x-5+-8+12$
$x^9+2x^2-x-2$
$18b-36$
$\frac{\left(-2x^2-6y^2\right)}{4xy^3}$
$\int\sin^5\left(7x\right)dx$
$\int\left(7x-2\right)e^{-x}dx$
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