Let f(x) ax3 bx2 cx d and suppose that r is a root of the equation f(x) 0. (a) Show that

Chapter 12, Problem 21

(choose chapter or problem)

Let f(x) ax3 bx2 cx d and suppose that r is a root of the equation f(x) 0. (a) Show that r h is a root of f(x h) 0. (b) Show that r is a root of the equation f(x) 0. (c) Show that kr is a root of the equation f(x/k) 0. 22

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