Answer:
"The number c is a zero the polynomial function y=P(x) if and only if x-c is a factor of the polynomial P(x)."
Explanation:
We have been given some statements with blank spaces:
"The number c is a _______ of the polynomial function y=P(x) if and only if x-c is a _______ of the polynomial P(x)."
Now we need to fill those blank spaces by suitable words.
We know that if x=5 is some root (zero or solution) of the polynomial function then (x-5) works as factor.
So using that logic, we can fill the blanks spaces as:
"The number c is a zero the polynomial function y=P(x) if and only if x-c is a factor of the polynomial P(x)."