$3x-9>0$
$-13\cdot3\cdot\left(-2\right)^2$
$4x-1=11$
$\int\frac{1}{\left(u^2-16\right)^2}du$
$3^{2x}-36\cdot3^x+243\:=\:0$
$\int_0^{1000}\left(x^2\right)dx$
$6\:x\:27$
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