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

$\left(-5\right)-\left(-9\right)+\left(-4\right)-\left(+7\right)$

$\left(\frac{2}{3}g-3f\right)^2$

$-\frac{15y^2}{\left(-3y^2\right)}$

$\frac{m^{18}-n^{18}}{m^3-n^3}$

$\lim_{x\to\infty}\left(\frac{\sin\left(\frac{1}{x^2}\right)}{\frac{1}{e^{x.2}}-1}\right)$

$2\left(6+5x\right)+3\left(x+1\right)>2\left(6x+4\right)$