Why is choosing national heroes so complicated?

Answer :

We need to find the values of a, b, and c in the quadratic equation

The general form of quadratic equation is

First we arrange the equation in order. x^2 should come first

can be written as

The coefficient of x^2 is the value of 'a' = -4

The coefficient of x is the value of 'b' = 5

The constant is the value of 'c' = -2

So a = -4, b=5 and c= -2