$\frac{\sqrt{\left(1\right)^2-6\left(1\right)+9}}{\left(1\right)}$
$512+343n^3$
$-3x\sin\left(x\right)+3x^2$
$-25a^2\:2ax\:36$
$2r^2\:-\:2s^2\:+\:hr^2\:-\:hs^2\:$
$\left(5-2i\right)^{2}$
$\frac{1}{2}a^2-\frac{5}{8}a^2$
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