$\frac{4}{1}\cdot\frac{1}{8}\sqrt{12\cdot2\cdot3^2}$

$\left(x-y-1\right)dx-dy=0$

$\frac{5}{3}-x+\frac{1}{3}$

$\frac{\left(\infty\:+1\right)}{\infty\left(\infty+2\right)\left(\infty^2-2\infty+5\right)}$

$\left(x^{a+1}-2x^a-x^{a-1}\right)^2$

$45\cdot16$

$\left(\frac{c^6}{a}\right)^3$