$\int y\sqrt{1-y^2}dy$

$\left(y^{\frac{3}{2}}x^{-\frac{1}{2}}\right)$

$\frac{t^{2}-6t-7}{t^{2}-81}$

$\int\frac{x^2-5x+16}{x^3+3x}dr$

$5y^3z^2\cdot4yz^8$

$c^4-45^2+100$

$\left(\frac{x^{2}y^{2}}{x^{-2}y^{-1}}\right)^{3}\left(\frac{x^{-3}y^{-1}}{x^{4}y^{2}}\right)^{1}$