$\frac{x^2-2}{x^4-1}$
$\sqrt[3]{\frac{3a^2y^6z^7}{2y^2}}$
$m^2+8^2+49$
$0.5\cdot1400\cdot30^2$
$3\cos\left(2x\right)+2\sin^2\left(x\right)=2$
$x^2+12x=-11$
$\int\frac{2x}{\sqrt{x+2}}dx$
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