$\frac{1}{2}x+\frac{2}{3}xy+\frac{5}{6}y^2-\frac{1}{3}^xy-\frac{3}{4}x^2-\frac{5}{6}y^2$

$7a^2+5a-3=0$

$x^4+x^33-30x^2$

$\left(-\frac{4}{5}a^2\right)\left(-\frac{10}{4}b\right)\left(-ab^2\right)$

$\frac{x^5-x^48+x^2-2}{x^2+1}$

$\int xe^{-\frac{1}{6}x}dx$

$\int\left(\frac{5}{\sqrt{2x+3}}\right)dx$