$8\left(-3h\:+\:4\right)\:$
$\frac{\sin\left(b\right)\:}{1+\cos\left(b\right)}+\frac{1-\cos\left(b\right)}{\sin\left(b\right)}=2\:csc\:b$
$\left(m^2+n^2\right)\left(m^2n^2\right)$
$\left(5-7\right)-\left|\left(-3\right)\right|+\left(-6\right)$
$x^2-x=5$
$-5x^2-40x-77$
$-13\:+\:-1\:+\:1\:+\:-17\:$
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