$log\:\left(x+6\right)\:=\:2$

$8\:+\:x\:=\:1$

$25x^2y^2+10x^2y^2$

$\left(\frac{1}{7}x+\frac{1}{3}y\right)^3$

$\int_0^{\infty}\left(x\cdot e\left(-\frac{x}{2}\right)\right)dx$

$\lim_{x\to9}\left(\frac{\sqrt{2x-2}-4}{\sqrt{x-3}}\right)$

$\int\frac{1}{\left(x+3\right)^3}dx$