Verified Answer :

Answer:

Hence, the roots of the polynomial equation are:

-2, 1, 4

Step-by-step explanation:

We are asked to find the roots of the polynomial equation:

\(x^3-6x=3x^2-8\)

We can also equate this equation to y to obtain a system of equation as:

\(y=x^3-6x\)

and \(y=3x^2-8\)

Hence, the roots of the polynomial; equation are the x-values of the  point of intersections of the graph of the system of equations.

Hence, the point of intersection of the two graphs are:

(-2,4), (1,-5) and (4,40)

Hence, the roots of the polynomial equation are:

-2, 1, 4

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Answer:

D

Step-by-step explanation: