$9x^8-30x^6+25x^4$

$x+9\ge10$

$10\cdot10\cdot342.367$

$\lim_{x\to0}\left(\frac{sin^2\left(x\right)}{2-2cos\left(x\right)}\right)$

$\lim_{x\to0}\:\frac{sin\left(12x\right)-12xcos\left(12x\right)}{12x-sin\left(12x\right)}$

$4x+16>0$

$\lim_{x\to\infty}\frac{x^2-16x}{\left(x+1\right)^2}$