$\left(3y-4z\right)^3$
$\left(x^3+6x-5\right):\left(x+5\right)$
$h\:+\:4\:-\:9h\:-\:5g$
$7sec\left(x\right)csc\left(x\right)=14csc\left(x\right)$
$n^2+6n\:+\:9$
$\frac{6.9}{x\sqrt[2]{x^2+144}}$
$9x^2+24x-16$
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