The roots are -3, 2, -.5 + .866i, & -.5 - .866i
Mark J.
tutor
It says to use information given by the graph. When I graphed it, I saw the real roots of -3 and +2. Knowing that I divided the polynominal by x-2 to get (x-2)(x^3+4x^2+4x+3) and then divided the latter polynominal by x+3 to get (x-2)(x+3)(x^2+x+1). Then using the quadratic equation for x^2+x+1 to find the complex roots. You do not get complex roots from a graph.... you have to find them knowing that complex roots come in pairs.
Report
09/18/19
Scott O.
Can you show the steps? I don't understand09/18/19