$12x^2+14x-2=8$

$-e+8e$

$\lim_{x\to0}\left(\frac{sin\left(x\right)-x}{7x^2}\right)$

$\sqrt{\left(x-1\right)\left(x+2\right)\left(x-3\right)}$

$\left(2t-6\right)\left(2t+5\right)$

$16x^2+24x+9=0$

$\left|\left(a^2+b\right)+\left(c^2+8\right)\right|a^2+b-\left(c^2+8\right)$