$\left(2\right)\left(-3\right)\left(-3\right)$
$x^2-2x+257$
$a3=-64.$
$\int\left(\tan\left(9x+13\right)\right)dx$
$\frac{6\tan\left(x\right)}{1+\sec\left(x\right)}+\frac{6+6\sec\left(x\right)}{\tan\left(x\right)}$
$\int e^{2x^3}dx$
$2\left(x-1\right)\left(x+3\right)+\left(x-1\right)^2$
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