$8n^{2}+39n-54$
$\frac{1+\cos\left(x\right)}{\sin\left(a\right)+\cos\left(x\right)\sin\left(x\right)}=\csc\left(x\right)$
$-11\:x\:18\:x\:4$
$45g^3+34g^2+g-1+12g^5+27g^4+76g+45$
$y'=\frac{3x^2+4x-4}{2y-4}\:$
$3a^3.2a^2$
$\frac{-5}{2}\cdot2$
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