$\left(\frac{2}{3\:}x+1\right)^2$

$n=\left(\frac{\ln\left(\frac{3}{g}\right)}{\ln\left(5\right)}\right)$

$-\left(3+5\right)+\left(-8-10\right)+4\left(5+3\right)$

$\frac{2^{x+1}}{2^x-1}$

$\left(-2x+-2y\right)^2$

$\left(-2b^3+5a^2\right)\cdot\left(2b^3+5a^2\right)$

$\left(-1+4-5\right)\cdot\left(2-5-7\right)-3-2\cdot3$