To find $p^3 + p$, we can rewrite it as $p(p^2 + 1)$.
Now, let's find $p^2 + 1$. We know that $p^8 = (p^4)^2 = 12$. Since $p^8$ is positive, we can say that $p^4$ is also positive. Therefore, $p^4 = \sqrt{12}$.
Now, we can find $p^2$ by taking the square
Show more…