$a^{\frac{-2}{5}}$
$48.77\cdot59.42$
$53\sin^2\left(x\right)+49\cos^2\left(x\right)$
$\left(x^3+1\right)\left(x^3-1\right)$
$\left(a+b\right)^3-\left(a-b\right)^2$
$\lim_{x\to3}\left(\frac{\sqrt{2x-5}-1}{x+3}\right)$
$\frac{\left(b-a\right)^2}{a^2-b^2-ab}$
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