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

$45\cdot111$

$a^3\:-\:3a^2b\:+\:4ab^2\:\:por\:\:a^2b\:-\:2ab^2\:+\:10b^3$

$2+5\cos\left(\frac{1}{2}x+\frac{\pi}{2}\right)$

$\frac{d^2}{dx^2}\left(\frac{3x-5}{6-8x}\right)$

$\left(\frac{1}{2}a^3b+\frac{3}{2}ab^3\right)$

$\left(-7\right)\left(+3\right)-\left(-2\right)\left(-8\right)+16$