$\left(6x+1\right)+\left(7x+3\right)$

$\left(10u^2-3vw^{2n}\right)\left(10u^2+3^{2n}\right)$

$\lim_{x\to\infty}\left(\frac{2y^2-3y+5}{y^2-5y+2}\right)$

$\frac{m^2-16}{m+4}$

$\int\frac{-2x+9}{\left(x+6\right)\left(x-4\right)}dx$

$\left(4m^5+5n^0\right)^2$

$\lim_{x\to\frac{\pi}{2}}\left(4\cos\left(3x\right)\sec\left(5x\right)\right)$