$\left(8^2+1\right)\left(8^4-1\right)\left(8^8+1\right)\left(8^{16}+1\right)$

$\left(-5^2ab^2\right)\left(-2a^2\right)$

$\lim_{x\to0}\left(\tan^3\left(2x\right)\frac{1}{\sin\left(x\right)-x\cos\left(x\right)}\right)$

$8y-2=9y+5$

$\int\frac{\cos^3\left(x\right)}{\sec^6\left(x\right)}dx$

$x+7=3+5x$

$8\:\ln x-\frac{1}{9}\ln y$