$\left(m^2p^2-3np^2+m^2z^2-3nz^2\right)$
$\left(3\right)\left(10\right)^2+\left(2\right)\left(10\right)+1$
$z^2-7z-30$
$1-\frac{a^2}{81}$
$5-\left(-9\right)-\left(-2\right)$
$8ba^4\cdot b^4$
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