Respuesta :

Answer:

D) 3

Step-by-step explanation:

Using the graphing calculator, the roots of the polynomial equation are 3

What are polynomial functions?

They are functions that has a degree of 3 and above. Given the expression

x(x-2)(x+3) = 18

Expand

(x²-2x)(x+3) = 18
x³+3x²-2x² -6x-18 = 0
x³+x² -6x-18 = 0

Using the graphing calculator, the roots of the polynomial equation are 3

Learn more on factoring here: https://brainly.com/question/24734894

#SPJ2