$\frac{n\:dn}{n}=te^{t+2}dt$
$2^{\left(10-2x\right)}=64$
$-4x^2-8x+60$
$\frac{3x^3-10x+9}{x+2}$
$1^2-5-1$
$\sqrt{3+y}-\sqrt{y}=3$
$a^2+4b^2c^4+4abc^2$
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