$f\left(x\right)=\frac{1}{\left(10+x\right)^2}$

$2003-\left(-70\right)$

$\log\left(4x^2\right)$

$\frac{x^2}{y}\cdot\sqrt{\frac{x}{4y}\sqrt{\frac{y}{2x}}}$

$\left(4x-5\right)\left(16x^2+20x+25\right)$

$z^2-2rm+z;r=6,m=4,2=5$

$\int_{-2}^{\sin\left(x\right)}\left(3x\right)dx$