I am having a hard time understanding this definition.
The definition states.
"If P is a polynomial function, then "c" is called a zero of P if P(c) = 0. In other words, the zeros of P are the solutions of the polynomial equation P(x) = 0. Note that if P(c) = 0, then the graph of P has an x-intercept at x = c, so the x-intercepts of the graph are the zeros of the function.
Real Zeros of Polynomials
If P is a polynomial and c is a real number, then the following are equivalent:
1) c is a zero of P 2) x= c is a solution of the equation P(x) = 0 3) x-c is a factor of P(x) 4) c is an x-intercept of the graph of P."
Been reading this definition for and 1 hour and I just don't get it. Can someone explain it to me as if I am a 5 year old?