$22-\left(-7\right)+\left(-12\right)-19+13$
$2x^2+10x+12\ge0$
$3\cdot9\cdot9\cdot3\cdot9\cdot9\:\cdot3\cdot9$
$\frac{t^{11}}{t^2}$
$\int\frac{x}{\left(x^2+9\right)^{\frac{3}{2}}}.\:dx$
$\log_b\left(z\right)=-4$
$\frac { 8 } { 1 x ^ { 3 } - 4 x ^ { 4 } }$
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