$\int\left(x^3\sqrt{2x^4-1}\right)dx$

$\frac{4+36t^2\sin\left(3t\right)^2+9t^3}{t}$

$\cos\left(x\right)\csc\left(x\right)\cos\left(x\right)\left(\frac{1}{\cos\left(x\right)}\right)=\cot\left(x\right)+1$

$\left(m+2n-6\right)^2$

$\frac{1}{y^3+y^2}$

$2b+4c+8m$

$x^2-5x+4$