$\left(\sqrt[3]{a^{x-1}}\right)\left(\sqrt{\sqrt{a^{x-2}}}\right)$
$\frac{3x^2+8}{x}=\frac{8}{x}+3x$
$-625-15625$
$2\cos\left(x\right)+1-\sin^2\left(x\right)=3$
$\sqrt[2]{4+\sqrt[3]{27}}$
$\left(4\sqrt[2]{x-5}+4\right)^2$
$\left(-r+3\right)\left(-r+7\right)$
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