$\left(8x^3-27\right)-\left(2x+3\right)^3$
$\frac{x^2}{4}-1$
$\frac{880}{4}$
$cos^2\left(x\right)=\frac{1}{8}$
$603\cdot178$
$2^2\:+\:2^3$
$49-y^4$
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