$f\left(t\right)=\left(\ln\left(3t\right)i\right)+\left(\sqrt{5}t\right)j-\left(3t^2\right)k$

$2b^3-18b^2-44b$

$\left(7d-4m\right)^2$

$\left(\frac{5}{7}x^3y^2+\frac{1}{2}x^2y^3\right)^2$

$\left(p+9\right)\left(p-12\right)$

$\int\frac{3x^3}{\sqrt{x^2+25}}dx$

$\int_{\frac{-\pi}{2}}^{\frac{5\pi}{6}}-2\cos\left(2x\right)dx$