Question

Which of the following is a polynomial function in factored form with zeros at -2,5,and 8?
A. F(x)=(x-2)(x+5)(x+8)
B. F(x)=x^3+11x^2+14x-80
C. F(x)=x^3-11x^2+14+80
D. F(x)=(x+2)(x-5)(x-8)

Answer 1

The last one. Simply susbtitue each of the x values and you will see that the result is zero for each one.