What are the zeros of the polynomial function# f(x)=x(x-4)(x+9)#?
Feb 28, 2016
0, 4, and -9
The product of these monomials is a degree 3 polynomial. So, there are 3 roots (values where the function is zero). Clearly, by substitution these occur when x = 0, x= 4, and x= -9.