$\int26^x+e^{26x}dx$

$\frac{\cos\left(x\right)^2}{1-\sin\left(x\right)}=1-\sin\left(x\right)$

$\left(2x^3+7\right)\left(2x^2-5\right)$

$\lim_{x\to0}\left(\frac{1-x+\ln\left(x\right)}{1+\cos\left(7\pi x\right)}\right)$

$\left(1+3t^{\left(3\right)}\right)^2t$

$7\left(ln\left(x\right)\right)n$