$\frac{3}{a^{-9}}$

$\sin\left(x\right)\left(csc\left(x\right)+\sin\left(x\right)\right)+cos\left(x\right)\left(sec\left(x\right)+cos\left(x\right)\right)-2$

$\int\frac{x+14}{x^3x^2-x}dx$

$3x-y=-13\:\:\:$

$\int_{15}^{\infty}\left(\frac{6}{v^2-v}\right)dv$

$\left(1+\sqrt[2]{3}x\right)\left(1-\sqrt[2]{3}x\right)$

$\int\frac{x^2}{25+x^3}dx$