$\int\frac{1}{\sqrt{5-x^{2}}}dx$
$-348-\left(-125\right)$
$5x^2-55x+10=0$
$2^5\cdot2^3\cdot2^2$
$x^4-81=0$
$\cos^4a-\sin^4a=cos2a$
$x^3y^2-x^3y$
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