$-5m-3n+62n+2m-8$
$\left(h+h\cdot q^{-1}\right)^2$
$1\cdotx^{2}+x$
$\frac{csc\left(x\right)}{\cos\left(x\right)}+\frac{sec\left(x\right)}{sin\left(x\right)}=2$
$-3a^2b^3+12a^2b^3$
$\sqrt{x^2}-2x$
$\frac{3}{5}c\cdot\frac{3}{4}$
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