$\left(\frac{\left(4\right)}{\left(5a\right)}\right)+\left(\frac{\left(2\right)}{\left(6a\right)}\right)$

$3a^2+a-4$

$2xd+4=10+2.5xd$

$\frac{d}{dx}\left(\left(9t+2\right)^{\frac{2}{3}}\right)$

$\int sin\left(\theta\right)cos^4\left(\theta\right)dx$

$\frac{d}{dx}\left(\:5x^2+3y-x=2\right)$

$9-2x+7$