What are the roots of the polynomial equation x^3-6x=3x^2-8? use a graphing calculator and a system of equations. –40, –4, 5 –5, 4, 40 –4, –1, 2 –2, 1, 4

Given the polynomial equation x^3 -6x = 3x^2 – 8. Which can be simplified into (x^3) -3(x^2) -6x +8 = 0. The roots of the given equation are x = -2, x = 1 and x = 4. The order  of equation also represents the number of roots of the equation given. Since the highest exponent is 3, there also 3 roots. So the answer is D. 2 –2, 1, 4