$\left(e^{i\cdot \theta}-e^{-i\cdot \theta}\right)^3$
$\left(\frac{5x}{6}-\frac{2}{7}\right)^2$
$-\left(2\infty-\frac{\infty^5}{5}\right)$
$60\cdot7.5$
$10b\:x\:0.2b^2$
$v^2+16v+36$
$\int\frac{x^4+81}{x\left(x^2+9\right)^2}dx$
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