 2 root 7 is the zero of a polynomial p of x. Find the value of 3 times p of 2 root 7 plus of 9. We are given that 2 root 7 is the zero of the polynomial p of x. Now the question is what do we mean by this? So this statement tells us that if we would substitute 2 root 7 instead of x, wherever we can see x in this given polynomial, if we would have substituted 2 root 7 instead of x, then the value of this polynomial would be equal to zero. So basically zeros are those particular values of x which would give us zero as the value of this polynomial. So this means p of 2 root 7 is nothing but equal to zero. So for this given expression p of 2 root 7, p of 2 root 7 would be equal to zero because 2 root 7 is the zero of this given polynomial. So this means 3 times zero plus of 9, 3 times zero is zero plus of 9. So this is equal to 9. So the value of this given expression is equal to 9.