$4x+2<6$

$f\left(x\right)=3x^4-\frac{1}{5}x^2+7x-2$

$10a^2+7a-12$

$-5\cdot2+\left(6\right)\left(-5\right)\left(2\right)-\left(-3\right)\left(5\right)-\left(-4\right)\left(-2\right)-7$

$\frac{5m^4n^{-3}}{5m^{-4}n^{-2}}$

$\lim_{x\to-5}\left(\frac{25-x^2}{x+5}\right)$

$\int e^{2x-1}dx$