$\left(3z^4-6y\right)\left(4y+3z^4\right)$

$x\left(1\right)=\frac{4x^{\frac{1}{12}}-x^{\frac{1}{3}}-3}{12x^{\frac{3}{4}}\left(x^{\frac{1}{3}}-1\right)^2}$

$f\left(x\right)=4x^4-28x^3-76x^2+28x+72$

$\sqrt{1116}$

$\frac{csc^2x}{cot\:x\:+\:tan\:x}=\frac{cos\:x}{sin\:x}$

$\int xsen^3\left(x\right)cos\left(x\right)dx$

$2x+2x+5x$