$\left(\sqrt{b}+\sqrt[4]{25}\cdot\sqrt{a}\right)^2$

$\left(9d^5-f\right)\left(9d^5+f\right)$

$\left(2+\tan\left(x\right)\right)\left(4\sin\left(x\right)\right)=0$

$\left(8z+n\right)\left(8z-n\right)$

$3\:\left(\frac{x}{4}\right)$

$\lim_{x\to0.5}\left(2+2\ln\left(2x+1\right)\right)$

$-4-11-\left(-3+9\right)-\left(-6\right)$