$-11\:+\:-10\:+\:-3\:+\:-6\:+\:12\:+\:18\:+21\:+19\:+\:15+\:9+\:2+\:-8$
$4z^3+25z=20z^2$
$-4+5x-17-22x$
$x^4-4x^2+2x+5$
$\left(2x\:+\:6xy\:+\:4y\right)^2$
$3a^2b\left(5a^2b+11ab-5b^2\right)$
$\int\frac{-3x+2}{\left(x+5\right)^2\left(x-2\right)}dx$
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