$y^{'\:}=\frac{x^4+3x^2y^2+y^4}{x^3y}$
$\frac{a^{5}b^{-2}}{b^{-1}a^{3}}\frac{b^{-12}}{a^{-6}}$
$56+76-56+78-34-67$
$-1+2-3+2-5+3+6-4$
$3x+17<30$
$-10sin\left(wt+30\right)+20cos\left(wt-45\right)$
$2^7\cdot2^6$
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