$\int2^{3x}\:dx$

$e^x\sin\left(x\right)\cos\left(x\right)$

$\sin\left(x\right)+\sin\left(3x\right)+\sin\left(5x\right)$

$\left(x+1\right)^2+\left(x\:-1\right)^2-2\left(x^2-1\right)$

$\int\frac{7}{\left(64+9x^2\right)^2}dx$

$y'+2y=6x^2\:$

$\left(\sqrt[2]{2}\cdot\sqrt[2]{3}\right)\cdot\sqrt[2]{2}$