$\left(8^3\right)^8$
$-5+1o=w$
$cos^4x-sin^4x=1-2sin^2x$
$12-x-x^2$
$x\frac{dy}{dx}+4x=x^3-x$
$\frac{1}{5}\int t\sqrt{\frac{144-t^2}{5}}dt$
$20x^2-2x-3$
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