$25.75-3.20$
$\lim_{x\to-1}\left(-\frac{x^2-1}{x+1}\right)$
$\lim_{x\to\frac{\pi}{2}}\left(\tan\left(x\right)^{\sin\left(2x\right)}\right)$
$f\left(x\right)=1+x-2x^2$
$\left(c^{11}d^5\right)^9$
$\left(x-3\right)^2+y^2=5$
$\frac{x^2+9x+18}{x+6}$
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