What are the roots of the polynomial equation x^3 -6x=3x^2-8? Use a graphing calculator and a system of equations.
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