$\int_0^{\frac{1}{2}}\left(\frac{10x^2}{\left(1-x^2\right)^{\frac{3}{2}}}\right)dx$

$x^2-9x+1$

$\left(cos\left(a\right)+3sin\left(a\right)\right)^2=5-4cos\left(2a\right)+3sin\left(a\right)$

$\int\left(9-x^2\right)^{\frac{3}{2\:}}dx$

$\frac{m-a}{n}-\frac{n+x}{m}$

$\int2t^{-4}\left(2+4t^{-3}\right)^{-7}dt$

$\left(4m^3n^2+2\right)\left(-2-4m^3n^2\right)$