$\frac{16x^2+8x}{24x+12}$

$2d^2+6d^2+5+2$

$\frac{\sin\left(x\right)-\tan\left(x\right)}{\cos\left(x\right)-1}=\tan\left(x\right)$

$\left(11a-9b\right)\left(121a^2-99ab+81b^2\right)$

$\frac{3}{5}a^2-2ab+\frac{1}{10}a^2-a^2-\frac{1}{3}ab+2ab-2a^2$

$2^2+3^2-1^{19}$

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