$9\left(1-2senxcosx\right)=1$

$-5.47\cdot10^8$

$x^2+4x=13$

$\left(-4abc\right)\:\left(-13a\:b^4\:\right)\:\left(2ab^5\:c^7\:\right)$

$\int_{\frac{\pi}{5}}^{\frac{4\pi}{5}}\left(\sin\left(x\right)\right)dx$

$\lim_{x\to0}\left(\left(\frac{1}{x}\right)\sqrt[2]{5+x}-\sqrt[2]{5-x}\right)$

$\left(3+4n\right)+\left(1+2n\right)$