$3^3\cdot\sqrt{4}-4^2$
$2x^3-2x^2+2xz^2-2z^2-3ny^2+6xy^2$
$\left(\frac{1}{4}x^2y+\frac{3}{2}a^2b^3\right)^5$
$85x\left(-2\right)$
$x^2-4x-32=0$
$9a^3b-12a^2b^3+15ab^2-18a^3b^2$
$\left(1-sen^2b\right)\left(1+tan^2b\right)=1$
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