$7x^4-5x^6+3x^3-x^5$

$6\left(-4j-1\right)$

$2\left(x\:+\:1\right)\:+\:3x\:<\:4\left(x\:+\:5\right)$

$\left(v^4\right)^3$

$\left(2x\sin\left(y\right)+y^3e^x\right)dx+\left(x^2\cos\left(y\right)+3y^2e^x\right)dy$

$\lim_{t\to0}\frac{e^t+e^{-t}}{t^2}$

$\lim\:\:_{x\to\:\:5\:}\left(\frac{a+5}{a^2.25}\right)$