$\int\frac{65x}{4x+1}dx$
$\:-15x-216+4x=125\:$
$\left(3y+2\right)\left(9y^2+6y+4\right)$
$\frac{\csc^2b}{\cot^2b}-1$
$x^3+9x^2+24x+20$
$z^2-100$
$3x^2+18x+34=4$
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