$4a^{-3}$
$\left(\frac{x^{8-y}}{2}+3y^{8x}\right)^2$
$\sqrt{-2x+3=3}$
$2\sin\left(2x\right)=3$
$\frac{9x^4-27x^6}{3x^3}$
$\frac{1}{sec^2x-1}$
$9y-11=10+12y$
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