$3x^2+9x+27$
$\left(-3\cdot7\right)+\frac{10}{5}$
$\int\sec\left(x\right)^3\csc\left(x\right)dx$
$t\frac{dx}{dt}=x-1$
$21a^2+11a-2$
$5+x^3\left(\left(\frac{dy}{dx}\right)-1\right)=-6x^2y$
$\frac{10x^2y^2-8y^3+6y}{2y^2}$
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