$x^2-10x+0$

$4x^2-2x-5=0$

$\lim_{x\to0}\left(\frac{e^{14x}-1-14x}{x^2}\right)$

$\lim_{x\to2\pi}\left(\frac{\sin\left(6x\right)}{\sin\left(3x\right)}\right)$

$\int_0^{\frac{\sqrt{2}}{2}}\frac{1}{\left(1-x^2\right)^{\frac{3}{2}}}dx$

$\int\left(2\:\sqrt{x-10}\right)dx$

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