$.5\ln\left(25x^{16}\right)-\ln\left(5\right)$

$\int\left(8x^2+x\right)dx$

$\left(11x^{9}y^{5}\right)^{2}$

$3\left(-x^2+x\right)$

$\frac{\left(2\:x\:y\:-\:21\:x^2\:y^2\:+\:10\:x\:y^3\right)}{-2\:x\:+\:y}$

$\left(3\cdot5\right)^4$

$-\frac{1}{4}b^2+\frac{5}{3}b^2-\frac{3}{4}b+8b-4$