$7q+8q$

$\lim_{x\to0}\left(\frac{ln\left(2x+2\right)}{5x+5}\right)$

$\lim_{x\to+\infty}\:\frac{10x^3+100x+9}{5x^9+6}$

$-\frac{1}{2}x\left(6x-8\right)+\frac{1}{2}x\left(4x-6\right)-\frac{2}{3}x\left(3x+6\right)$

$23\ge w-9$

$-\sqrt{x}+\frac{3}{\sqrt{x}}$

$\left(2^m\right)\left(2^m\right)$