$\int\frac{ln\left(x^2\right)}{3x^2}dx$

$2-n=6+3\cdot n$

$-2x+1\le-3$

$\frac{cos\left(3x\right)-sin\left(3x\right)}{1-2sin\left(2x\right)}=cos\left(x\right)+sin\left(x\right)$

$\left(1-\cos\left(a\right)\right)^2+2\:\cot\left(a\right).\sin\left(a\right)=1+\cos\left(a\right)^2$

$4x-2+4x-2+5x-6+5x-6$

$24x^2\:-\:96x\:+54$