$\int\left(3x\left(1-2x^2\right)\right)dx$

$\frac{4x^3-9x}{10x^4+11x^3-6x^2}$

$c^2+6c+27$

$x'\:=\:sin\left(t\right)\:-\:x$

$5b+30$

$\left(\frac{1}{2}-6\right).\left(\frac{1}{2}-6\right).\left(\frac{1}{2}-6\right)$

$2\pi\int_0^1\left(1-x\right)\left(3-3x^{\frac{1}{4}}\right)dx$