$\int x\left(ln\left(3+x\right)\right)dx$
$2+2n\ge8$
$4cos\:y\:sin\:y\:\left(1-2sin^2y\right)$
$25a^2+40an+16n^2$
$\frac{0.3}{0.9}$
$-19-90+-47+-18$
$\left(\frac{3}{5}x+5\right)\left(\frac{3}{5}x+3\right)$
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