$\left(\sqrt[4]{c}\right)^4$

$4x+1+\frac{1}{4x+1}$

$\int\frac{x^2}{x^2+6x-6}dx$

$\int\left(\frac{\ln\left(\sqrt{x}\right)}{x^2}\right)dx$

$f\left(x\right)=\frac{x^2+4x+3}{x-2}$

$\left(4\left(2.9\right)-13\right)^{2.9}$

$\int_x^0\frac{t+1}{\left(t-1\right)\left(t+2\right)}dt$