$8\left(6\right)\:+\:\left(-2\right)\left(-9\right)\left(-2\right)$

$9t^2+6t+1=0$

$1-2a+2a^2$

$\frac{1-\cos\left(x\right)}{1+cos\left(x\right)}=\left(csc\left(x\right)-cot\left(x\right)\right)^2$

$\int\frac{4}{x^2-10x+26}dx$

$\frac{3}{x-4}+\frac{3}{x+4}=\frac{24}{x^2-16}$

$\int_0^{\infty}\left(x^{27}+\sin\left(x\right)\right)\cdot dx$