$\left(\frac{1}{2\:}\:+\:\frac{2}{5}\right)^2$
$05a+05b^2$
$30.85+29.15$
$\lim_{x\to-\infty}\left(-\frac{1}{4}e^{-x^4}\right)$
$\left(12x-5\right)^2$
$\left(2x-74\right)<11$
$\left(x+a^2\right)^2$
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