$\left(a^7+4\right)\left(a^7+6\right)$

$\int\left(\frac{x^3-x+3}{2\sqrt{x}}\right)dx$

$\frac{3x+1}{2x-3}\ge2$

$\frac{x^2+3x-10}{x+5}$

$\frac{\sin\left(x\right)+\frac{\sin\left(x\right)}{\cos\left(x\right)}}{\cot\left(x\right)+\frac{1}{\sin\left(x\right)}}$

$3\sqrt{5}\cdot2\sqrt{4}\cdot\left(-2\sqrt{5}\right)$

$\frac{9^{4}b^{5}}{a^{3}b}$