$\frac{x^5-4x^3+4x^2+4x-3}{x^2-2}$

$f\left(x\right)=\sqrt{-x^2+9}+\frac{1}{x-1}$

$\int\left(\frac{4}{\left(y+4\right)^6}\right)dy$

$12 x ^ { 2 } y ^ { 3 } - 24 x y ^ { 2 }$

$-3\left(r-4\right)>0$

$\int\frac{x-3}{\left(x+3\right)\left(x-1\right)}dx$

$\sqrt{x^7}.\sqrt{x}$