Question

What are the zeros of the polynomial function

Answer 1

Answer:

(b) 0,-5,4

Step-by-step explanation:

$f(x)=x^3+x^2-20x\\x^3+x^2-20x=0\\x(x^2+x-20)=0\\x(x+5)(x-4)=0\\x=0, x+5=0, x-4=0\\x=0,x=-5,x=4$