$\int ( 2 x ^ { 3 } + 3 ) ^ { 2 } d x$

$\frac{10q^2}{p+q}+qe^{\frac{1}{p}}$

$25-\left(80\right)-\left(-75\right)+100$

$\cos\left(\frac{\pi}{2}+x\right)+\sin\left(\frac{\pi}{2}+x\right)$

$\int\frac{3}{2x-5}dx$

$\left(3x^2+3xy\sin\left(\frac{y}{x}\right)\right)\frac{dy}{dx}=3y^2\sin\left(\frac{y}{x}\right)$

$6x+5=47$