$\frac{27x^4y^7z^3}{9x^2y^2z^{-1}}$
$\int\left(sec14xtan14x\right)dx$
$18+x=27$
$\left(5x^2+7y^3\right)^3$
$5,623+6,24$
$x+6=-2$
$f^2+4f+1$
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