$8m^3\:x^2\left(5mx+4m^2x-10x+m\right)$

$\lim_{x\to\infty}\left(x^3\left(\frac{4}{x}-sin\left(\frac{4}{x}\right)\right)\right)$

$\left(f-8\right)\left(f+8\right)$

$3x+4y+4m+4m$

$8\left(j+12\right)+4\left(k-19\right)$

$\frac{dy}{dx}=xsin\left(x^2\right)$

$\frac{\left(2x+3\right)}{\left(5x-4\right)}>-7$