$1.3\cdot\frac{1}{6}+9.9-9$

$150-1x-2x=120+2x$

$\sqrt{x}\left(\sqrt{x+3}+\sqrt{x-1}\right)$

$\int\frac{x}{\left(1-2y^4\right)^5}^3dx$

$( 3 x ^ { 2 } + 3 ) ^ { 2 }$

$\lim_{x\to\infty}\left(\left(1+2x\right)^{\frac{9}{2lnx}}\right)$

$\frac{d}{dx}\left(e^{\frac{x}{10}}\right)$