IIT Gn | Ayush Jaiswal

Here, I will post puzzles with details as following.

Each Sunday, I will post a puzzle.

$\textbf{Question(NBHM June 2005)}$ Find the value of $\textbf{a}$ such that $2+\sqrt{3}$ is a root of the polynomial, $$ x^3-5x^2+ax-1 $$

Here I will put note to solve the problem and keep brushing the knowledge.