$\left(\sqrt{ab}-2\sqrt{x^4y^3}\right)$

$\int\left(4x+x^4\right)\left(1+x^3\right)dx$

$\int\left(\frac{\left(-6sin\left(\sqrt{x}\right)\right)}{\sqrt{x}}\right)dx$

$\frac{3n\:+\:12}{n\:+\:2}$

$\left(6x^2y-6\right)\left(6x^2y+6\right)$

$\int3x\sin\left(x^2\right)dx$

$\int\frac{2x+1}{x^2+x+5}dx$