$\frac{3x^3+5x^2-4x-8}{2x^2+1}$

$72:\left(9-17\right)+11\cdot\left(93-105\right)$

$\int_1^{\infty}\left(\frac{1}{x^{\frac{12}{11}}}\right)dx$

$\left(m^6-1\right)\left(m^{12}+m^6+1\right)$

$4^4-2x^3-21x^2+22x+40$

$76a^2b^2y\left(-74a^2b^2y^2\right)$

$\int\frac{sen\left(t\right)}{\sqrt{\left(cos\left(t\right)\right)^3}}dt$