$\lim_{x\to\infty}\left(\frac{x}{4}\right)^{\frac{1}{x-4}}$

$\left(3yx^2\:+\:xy^2\right)dx\:+\:2y\sqrt{x^4}dy=0$

$2x-10y$

$\left(x-4\right)\left(x+1\right)$

$\int sin^5x\cdot cos^{10}x$

$\lim\:_{x\to\:0}\left(1+2x\right)^{\frac{1}{3x}}$

$\left(\left(a-7b\right)+3c\right)^2$