$x^3+3x^3+3x+1$

$\left(4-8\right)\::2-\left(-9\:12\right)\::3$

$\int x^29^{x^3-1}dx$

$\lim_{x\to\infty}\left(\frac{3x^3-6x^2+3x+6}{-3x^2+4x-4}\right)$

$x^6+2\cdot\:1x^3+1^2$

$\int\left(2x^3+5\right)^6\left(6x\right)dx$

$3\tan\left(60^{\circ}\cot30^{\circ}\sin45^{\circ}\csc45^{\circ}\right)$