$\left(\left(1+b\right)b\right)\left(b^2\left(1+b\right)^2\right)\left(b^4\left(1+b\right)^4\right)$

$\left|1+\left(3-5\right)\right|$

$\lim_{x\to-1}\left(\frac{x}{3x+2}\right)$

$\frac{2}{x^2\left(x+0.5\right)\left(x+1\right)}$

$\left(x\left(e^2^x\right)\right)$

$\lim_{x\to3}\left(\frac{\left|2x^2-3x-9\right|}{2x^2-3x-9}\right)$

$w^2\:-4w-12\:=\:0$