Question

if 3 is a root of the function f(x)=x^2+13x+c and c is a constant, what is the value of c?

Answer 1

Answer:

C would be -45

Explanation:

3 is the root basically means if you solve for x, x would equal to 3. So to find c you just have to replace x by 3.

F(3)=3^2+13(3)+c

Now you just have to solve for c