$\left(3x^{3}-13x^{2}+8x-14\right):\left(x-4\right)$

$\left(2m+3n-1\right)^2$

$\left(2n-5x\right)^{\left(3\right)}$

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

$\left(\:3x\:-\:4y\:\right)\:-\:\:\left[\:5x\:-\:\left(\:3x\:+\:2y\:\right)\:\right]\:-\:\left(\:2x\:-\:y\:\right)\:$

$\lim_{x\to\infty}\left(\frac{ln\left(2x\right)}{lnx}\right)$

$2+2^2-5^3-3^3-1^5$