$\int\frac{\ln\left(y\right)}{2y^3}dy$

$3\left(1+2x\right)+\left(3-x\right)+4\left(x+1\right)-1$

$\left(\sqrt{3x\cdot y+7}\right)\cdot\left(\sqrt{3x\cdot y-8}\right)$

$2x^2+5x<x^2+2$

$\int xe^{-7}dx$

$\lim_{x\to\pi}\left(\frac{x\sin\left(x\right)}{\cos^2x+1}\right)$

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