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

$\frac{x^2+5x+6}{x^2+2}$

$\frac{x^{2}}{a^{2}}+\frac{y^{2}}{b^{2}}=1]$

$\left(-1\right)^3-\:5\left(-1\right)^3+4\left(-1\right)+1$

$\int e^{2x^3}dx$

$\frac { 5 x ^ { 3 } - 3 x ^ { 2 } - 20 x + 12 } { 5 x - 3 }$

$\int sen^2\left(\frac{x}{2}\right)\cdot\cos^4\left(\frac{x}{2}\right)dx$