$\frac{x^3-5x^2+3x^2-2}{x+1}$

$\sec^2\left(x\right)-\csc^2\left(x\right)=\left(\tan\left(x\right)+\cot\left(x\right)\right)^2$

$( - x + 6 x y ) ^ { 3 }$

$x^2-y+xy=x+1$

$-4in\left(x+1\right)\sin\left(4x\right)+\frac{cos\left(4x\right)}{x+1}$

$9-\left[\left(-5\right)\right]-\left(mas\:7\right)$

$x-2=10$