$8+3z=-8-z$

$\frac{\left(-1\right)^nx^n}{\left(2^n\right)\cdot n}$

$5x+6<3x-8$

$\int ln\left(x\right)\cdot2sin\left(x\right)$

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

$\int\frac{4}{\left(x+1\right)\left(x-1\right)^{2}}dx$

$y'''-3y''+2y'=0$