$9^8\cdot9^{-5}$

$b2+10b+25$

$\frac{\frac{1}{8}b^{\frac{1}{2}}+\frac{6}{8}a^5+\frac{4}{7}}{\frac{5}{11}a^{\frac{1}{2}}b^{\frac{2}{4}}}$

$-\frac{5}{\frac{1}{4}}$

$\lim_{x\to0}\left(\sqrt[5]{x}\ln\left(x\right)\right)$

$3x^2+7y^2+4x^2-5y^2$

$3\:\sin u\:-\:\cos^2\:u\:-\:3\:=0$